4 - 11"X16.5' FoodFreshing 4mil Rolls for Vacuum Sealer Commercial Grade Vacuum Food Saver Bags Three-tier 4 mil commercial grade material Embossed on both side for maximum air extraction Boilable, freezable, reusable, microwave & dishwasher safe BPA Free & FDA standard food safe materials Compatible with all leading brand clamp style vacuum sealers