You are buying a piece of 15 ft long of 12 oz 50" wide plain weave fiberglass cloth. (it is polyester, vinylester, epoxy resin compatible.For Canadian buyers, we will ship the items from Canada .You are buying 12oz 50" cloth in 15 feet long, plain weave great for all kinds of resins. this cloth is not a tight weaving type but quite loose for easier wet out & more economy. the edges are not trimmed.