Made of 100% virgin Low Density Polyethylene (LDPE) resin that meets FDA/USDA specifications and gauges are nominalSide gussets expand easily to fit over bulky or irregular size objectsTubular construction with a durable bottom seal, make these bags the best on the market1000/CaseMade of 100% virgin Low Density Polyethylene (LDPE) resin that meets FDA/USDA specifications and gauges are nominalSide gussets expand easily to fit over bulky or irregular size objectsTubular construction with a durable bottom seal, make these bags the best on the marketStaples Clear Gusseted Poly Bags 1.5 mil, 10x4x20http://s7d5.scene7.com/is/image/Staples/s0506754_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0506754_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0506754/Staples-Clear-Gusseted-Poly-Bags-15-mil-10x4x20/product_939839Staples Clear Gusseted Poly Bags 1.5 mil, 10x4x200.00