Made of 100%PE/PA,reusable vacuum food storage bags are BPA free. The sous vide bags double-layer zippers design for better air removal and airtight seal,suitable for storage sandwich,fruits,vegetables,cooked food for picnics,fishing and pantry,leftovers storage. Each vacuum storage sealed bag can be reused for more than 30 times,it can be washed with detergent and warm water,and then stored in a clean and dry place for next use. Put your food into the sous vide vacuum bags,seal it by using the clip and pump out the air through the valve,makes preservation better and the bag more durable. Comes with small15/medium10/large sizes 5,20 vacuum food storage bags(8.66*8.6inch,10*11inch,10*13.3inch),10 sealing stickers,4 cooking clips and 2 sealing clips will meet all your demand in your food storage or sous vide cooking. Package inlcudes: 15*small reusable food vacuum sealer bags 10*medium reusable food vacuum sealer bags 5*large reusable food vacuum sealer bags 4*cooking clips 2*sealing clips 10*replacement air valves