--- product_id: 10741938 title: "Learning Resources Bullseye Demonstration Compass, Dual-Scale Ruler, Classroom Whiteboard Accessories, Teacher Aids, Grades 1+" brand: "learning resources" price: "฿2713" currency: THB in_stock: true reviews_count: 13 category: "Learning Resources" url: https://www.desertcart.co.th/products/10741938-learning-resources-bullseye-demonstration-compass-dual-scale-ruler-classroom-whiteboard store_origin: TH region: Thailand --- # Draws circles 2"-32" diameter Dual-scale ruler (metric & customary) Suction cup for secure board mounting Learning Resources Bullseye Demonstration Compass, Dual-Scale Ruler, Classroom Whiteboard Accessories, Teacher Aids, Grades 1+ **Brand:** learning resources **Price:** ฿2713 **Availability:** ✅ In Stock ## Summary > 🎯 Master geometry with precision and style – your classroom’s new MVP! ## Quick Answers - **What is this?** Learning Resources Bullseye Demonstration Compass, Dual-Scale Ruler, Classroom Whiteboard Accessories, Teacher Aids, Grades 1+ by learning resources - **How much does it cost?** ฿2713 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/10741938-learning-resources-bullseye-demonstration-compass-dual-scale-ruler-classroom-whiteboard) ## Best For - learning resources enthusiasts ## Why This Product - Trusted learning resources brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Classroom-Ready Durability:** Shatter-resistant transparent plastic designed to withstand daily teaching demands. - • **Precision at Your Fingertips:** Quick-set radius indicator and direct-view pivot for flawless circles every time. - • **Effortless One-Hand Operation:** Suction cup secures compass firmly, enabling smooth, single-handed use on whiteboards. - • **Versatile Measurement Mastery:** Built-in protractor plus dual-scale ruler for seamless angle and length calculations. - • **Universal Marker Compatibility:** Works flawlessly with chalk or dry-erase markers for dynamic lesson demonstrations. ## Overview The Learning Resources Bullseye Demonstration Compass is a large, durable teaching tool designed for grades 1 and up. It features a suction cup for secure whiteboard mounting, a dual-scale ruler, built-in protractor, and can draw perfect circles from 2" to 32" in diameter. Compatible with chalk or dry-erase markers, it enables educators to deliver engaging, precise geometry lessons with ease. ## Description The Learning Resources Bullseye Demonstration Compass lets you model drawing activities for the whole class. Direct view pivot point and quick-set radius indicator allow easy drawing of circles 2" to 32" in diameter. Compass also has built-in protractor, and dual-scale ruler. Use with chalk or dry-erase marker. Suction cup fits securely on board. The Learning Resources Bullseye Demonstration Compass Features: Transparent, shatter-resistant plastic compass Large size (measures 19.75"L x 4.25 "H) Built-in protractor, and dual-scale ruler Review: Great circle making device! - I purchased this to be able to make circles on a whiteboard. I got so I could specifically draw out the orbits of the planets in our solar system. I was able to do this quickly and easily and maintain a relative distance between all of the orbits. My only complaint regarding this item would be that the suction cup adheres to the whiteboard too well! When trying to remove it from the whiteboard I almost pulled the board off of the wall. (The whiteboard, while attached to the wall, wasn’t “fixed” to the wall.) Review: Perfect circles, one hand operation - This is FANTASTIC! The suction cup makes it so easy to use with one hand. Perfect circles every time. ## Features - Create engaging lessons of geometric principals with this versatile demonstration compass - Draw circles 2"-32" in diameter, construct and measure angles with built-in protractor, and measure length in customary or metric scales - Suction cup fits securely on board for accurate measurements and construction - Direct view pivot point and quick-set radius indicator allow easy drawing of circles - Use with chalk or dry-erase marker ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000URL0NO | | Additional Features | Portable | | Best Sellers Rank | #216,557 in Office Products ( See Top 100 in Office Products ) #138 in Drafting Compasses | | Brand Name | Learning Resources | | Customer Reviews | 4.4 4.4 out of 5 stars (293) | | Global Trade Identification Number | 00765023815085 | | Item Dimensions L x W | 4.25"L x 19.75"W | | Item Type Name | Bullseye Demonstration Compass | | Item Weight | 0.33 Pounds | | Manufacturer | Learning Resources | | Manufacturer Part Number | LER1508 | | Material Type | Plastic | | Model Number | LER1508 | | Mounting Type | Wall Mount | | UPC | 765023815085 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Learning Resources - **Item Weight:** 0.33 Pounds - **Material:** Plastic - **Product Dimensions:** 4.25"L x 19.75"W - **Special Feature:** Portable ## Images ![Learning Resources Bullseye Demonstration Compass, Dual-Scale Ruler, Classroom Whiteboard Accessories, Teacher Aids, Grades 1+ - Image 1](https://m.media-amazon.com/images/I/61ECNLi4NsL.jpg) ## Questions & Answers **Q: Can this be used on chalk board with traditional chalk?** A: There is a small suction cup that is used to attach the tool to the white board. I am not sure it would attach to a regular blackboard. Also the hole where the marker goes is not big enough for a regular piece of chalk. **Q: Can it be used on a dry erase board?** A: Yes. This can definately be used on a dry erase board! **Q: I have dry erase paint on my dry wall. Will the suction cup stick on it?** A: As long as a suction cup will stick to it this will do fine. **Q: What suction cups work with these compasses? The suction cups have broken and I want to make sure I get the correct size.** A: Works great as intended. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great circle making device! *by D***S on June 1, 2024* I purchased this to be able to make circles on a whiteboard. I got so I could specifically draw out the orbits of the planets in our solar system. I was able to do this quickly and easily and maintain a relative distance between all of the orbits. My only complaint regarding this item would be that the suction cup adheres to the whiteboard too well! When trying to remove it from the whiteboard I almost pulled the board off of the wall. (The whiteboard, while attached to the wall, wasn’t “fixed” to the wall.) ### ⭐⭐⭐⭐⭐ Perfect circles, one hand operation *by L***N on July 14, 2025* This is FANTASTIC! The suction cup makes it so easy to use with one hand. Perfect circles every time. ### ⭐⭐⭐⭐ Works well overall, some minor issues *by J***Y on January 31, 2019* When I received the compass, the red slider had popped out of the main body. However, that popped right back in and works fine. Also, I had some of the same issues as others with the knob, but eventually managed to get the knob to turn on the screw threads and it now works fine. I actually bought it for use in D&D and similar games for drawing circles on a vinyl mat. It works quite well for that using my finest-tipped pens and the suction cup means that it holds well on the vinyl without having to worry about poking a hole in the vinyl. It's almost too big for most needs, as standard "1 in equals 5 ft" mapping means that it can do a circular room 340 ft in diameter. If you're a GM looking to draw a bunch of circles or arcs it'll do so quickly and accurately. It's definitely too big to try to use for most spell effects; if you really want to precisely place a fireball, for example, a similar product that's only 6 or 10 inches long will probably work better. ## Frequently Bought Together - Learning Resources Bullseye Demonstration Compass, Dual-Scale Ruler, Classroom Whiteboard Accessories, Teacher Aids, Grades 1+, Ages 6+ (LER1508) - EAI Education Slide N' Measure Compass: Assorted Colors - Set of 10 - Learning Resources SAFE-T Bullseye Compass, Ruler, Protractor, Early Geometry, Math Class Accessories, Ages 8+, Multicolor, Model:45701 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/10741938-learning-resources-bullseye-demonstration-compass-dual-scale-ruler-classroom-whiteboard](https://www.desertcart.co.th/products/10741938-learning-resources-bullseye-demonstration-compass-dual-scale-ruler-classroom-whiteboard) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-28*