Heavy Duty Cork and Rubber with Cling Foam Cushion Pads: 3/16" Thick x 3/4" Square - 1 Sheet (50 Pads Per Sheet) 50 pieces of 3/4 in. x 3/4 in. squares per pad Heavy duty cork & rubber Sticks to glass using cling foam Perfect for separating panes of glass Easily removable without leaving marks