Creality 3D Printer Filament, Rainbow PLA+ Filament 1.75mm, Multicolor PLA Plus Strong Toughness Dimensional Accuracy +/- 0.03mm, PLA Pro for Most 3D Printer, 1KG Spool(2.2lbs)

One of my favorite filaments. Runs beautifully every time, if I had a complaint it would be that it has too much pink in a cycle but that’s it.

he rainbow PLA+ filament arrived in a resealable package that kept it fresh and protected. The colors are bright and vibrant, high quality prints so far with the few easter eggs we printed as gifts for people. Performance & Usage: I've been using this filament for a few months now, and it has exceeded my expectations in terms of performance. It prints consistently with minimal stringing or warping, and the color remains vibrant. Pros: Offers excellent toughness and durability, easy to work with on my 3D printer, and produces high-quality prints with great attention to detail. Consistent performance, suitable for various 3D printing projects, and a reasonable price point about $22 /1kg Final Verdict/Recommendation: Highly recommend for anyone looking to achieve high-quality prints with their 3D printer, particularly those who value the importance of filament quality and consistency. It worked great in our Babbu Lab P1s! and Printed 6 of the infinite easter egg fidgets for Easter this year. These were a huge hit. colors are bright vibrant.

Picked this up mostly out of curiosity -- I run an AD5X with a 4-color AMS so I don't usually need rainbow filament to get color variety, but I wanted to see how the gradient transitions looked on single-extruder prints and whether the PLA+ properties were actually an upgrade over standard PLA. Short answer: the color shifts are smooth and the filament itself is solid. No clogs, no tangles out of the box, and the spool was properly wound -- something I don't take for granted anymore. Came vacuum sealed with desiccant, which matters more than people realize. Wet filament kills surface quality and this arrived dry. The PLA+ flex resistance is noticeable compared to regular PLA. I did a bend test on a thin-walled section and it took a lot more abuse before showing stress marks. For functional parts where you want a little give, that's worth something. Where the rainbow effect lands on your print depends entirely on your layer height, print speed, and model size. Smaller models cycle through colors fast; larger flat surfaces let the gradient breathe. It takes some experimentation to predict where transitions will fall if that matters to you. At this price point it's an easy recommendation for anyone who wants interesting single-extruder prints without dialing in a multi-material setup. Good filament, no drama.

Loaded this filament into the K1C and ran it at 300mm/s—no clogs, no stringing, just clean extrusion and crisp layer bonding. The color transitions are smooth and vivid, especially on larger prints. The spool is neatly wound, vacuum-sealed with desiccant, and the filament diameter stays consistent at ±0.03mm. It’s got enhanced toughness compared to standard PLA, so prints feel more durable without sacrificing detail. Works great with both direct drive and Bowden setups, and it’s compatible with most FDM printers.

This is a beautiful gradient filament for larger or tall models. Not a great option for smaller models since you might only cycle through a color or two. It makes a real difference to use high quality filament from a familiar brand.

This filament always seems to work well takes very little time in the dryer. The color gradient is not too much and not too little I would find it right about perfect. I never seem to have any troubles with my extruder not real flexible as I would expect from PLA it's great value for the money.

Since this listing is for a number of different filament colors, and also randomly a filament dryer, note that my review is based specifically on the rainbow filament. I haven’t had any issues with clogging, adhesion on a smooth PEI print sheet (for Prusa CORE One) is good, layer adhesion is also good, and I haven’t experienced any other problems. One thing to note is that there is a lot of filament length in between color transitions. If you’re printing something relatively small, it’s likely to be all one color, with maybe a little bit of a second color added in depending on where you are in the stool. Where this filament really shines is on large prints, where you actually do get a second or maybe third color. In my opinion, they should have a version like this (and label it accordingly: because this isn’t what I was expecting), and a version for smaller objects where the colors transition more closely together and the rainbow repeats throughout the spool. I’ve only used about 1/10 of it so far (it’s on yellow now), so I’m not sure how many rainbows you get in a spool, or if it just starts on violet and ends on red. In the picture, you’ll see the “Robo Alpaka” print from Prusa’s test models. I thought it looked pretty decent and the print quality wasn’t bad.

This rainbow filament looks nothing like what the picture shows. It's not shiny at all - it's very dull and the colors aren't vibrant. The colors are also spaced way too far apart so if you want something with a rainbow effect you'll have to print a HUGE print. Also, it's wound way too tightly on the roll, so it binds up. I decided to try a large print to get the effect and it failed 8 hours in to a 10 hour print because the filament got tangled on the roll and the printer couldn't pull it off. I'll never buy Ender filament again.