This Stainmaster Waterproof Foam Underlayment roll measures 3'W x 25'L x 2mm thick and provides 75 square feet of coverage. Designed specifically for use under vinyl plank and LVP flooring, it offers moisture resistance, sound reduction, and added cushioning underfoot. Item is like new and in its original packaging. Model #2200000430. A reliable underlayment solution at a significant discount.