VIVOSUN Highly Reflective Mylar Film Roll 4FT x 100FT for Outdoor Grow Room Indoor Decoration Aluminum Paint Coated 2 Mil Silver

Used to make DIY grow tent and it worked great! For the price, it was worth it to buy the 100ft roll to have extra for other projects or if I tear this tent down I can rebuild. Very reflective on both sides and strong but easy to cut with sharp knife or scissors. Good if you don't want to spend money on expensive grow tent and don't mind constructing one with cardboard and tape. Easier with 2 people to work with in large parts to avoid accidental creasing but it is very resilient to creasing in general.

Material thickness it is 2 ply and is actually wonderful we lined our basement walls and did a beautiful Pond and house plant Sanctuary for the turtles great reflectiveness it's easiest to use heat retention it's all right but the quantity in size for the money I mean it's a no-brainer if you need to reflect light get it

Tardó mucho y al final en ves de esto me mandaron un Pizarro de vidrio q me quede por q la devolución era en EU y lo pedían por correo =(

The roll is very big and covers a large area! Price is fantastic and delivery was fast! Highly recommended this product!

*****Update******: VIVOSUN Customer Service reached out to me and sent a replacement roll right away. They informed me that the first roll was a manufacturing defect. I am very pleased with this new mylar film roll. I am even more pleased in the level of service I received from VIVOSUN. I plan to continue purchasing from them whenever possible, knowing they stand behind their products. Well done! ________________________________________ (Previous Review): I am pretty happy with this Mylar film. Didn't experience any streaking, but I did notice that it is easy to create streaking/scratches if you are not careful. You will want to take care to unroll the film on a clean smooth surface; any abrasion may leave streaks/scratches easily. It is pretty thin (only 2 mil. thick), but it is surprisingly durable. I used a staple gun to hang some sheets. Even after some serious tugging/pulling, even stepping on the bottom, the film didn't tear or come loose -- there was some streaking/scratcges though with minimal contact. This film is not forgiving when it comes to scratches. I will say it is very reflective. Although, It is translucent. You can clearly see what is on the other-side, when looking into a lit room, from a dark room. It is comparable to some serious limo tint. 1 layer thick and it block almost all the light from coming through. But again, it is possible to see through it. This film is also very rigged. It doesn't fold well, it wants to retain its original shape -- but it does wrinkle without too much difficulty. Makes it a little difficult to double up. Honestly, not much light penetrates using a single layer though. This film would be much better with a black poly backing. I would recommend this to a friend as a cheap option for Mylar film. However, I would heavily suggest substituting the 7 mil version instead.