This is a professional muslin backdrop made from a heavier 100% cotton material. The 10X12" size (actually about 9X10.8" after shrinkage) weighs 3.8lbs. Prism premium cotton muslin backdrops are offered in three standard sizes:10X20" (actually 9X18", 5.7lbs)10X12" (actually 9X10.8", 3.8lbs)6X10" (actually 5.7X9", 1.9lbs) Special dyes are used to obtain well saturated colors which appear vibrant and not washed out. All sides are stitched to avoid unraveling and a 3.4" rod pocket is sewn into the top. Each muslin is folded and comes in a plastic bag to avoid moisture and stainage and then each bag is packed in a cardboard box for shipping.