" Panels have bound hems double nickel plated brass grommets 12 OC along top and 18 OC along side edges for fastening to adjacent panelsbr Double faced material in nominal 2 thickness with 1 lbssq ft barrier septum is our heaviest curtain 15 PSFbr Measures 4 width by 8 height by 2 thicknessbr Pack of 1 br Singer Safety Double Faced Quilted Fiberglass Panel 4' Width x 8' Height x 2 Thick"