Item works as it should, a Reptile Terrarium Background, I agree the material is simple Styrofoam but it makes working with this item real easy. Its not a slap in and go item, depending on use it may need cut and you may need more than 1 so measure your job and order accordingly. The size is off from description, its actually a lil smaller than 18 x 24 its more like 17 x 22. when mounting you have to glue or use caulking and any seams will need caulked and I use moss to fill un evenness. Bottom line is unless u can make ur self its not a bad product, I like and will continue to use. I use this companies background products in every reptile enclosure I own and am HAPPY. Try it you may like it..