Generic 11-Piece Thick Storage Vacuum Bag Set, 100 x 80cm, Multicolour

Double seal, anti-leakage, with large pump Dustproof, waterproof, mildewproof, moisture proof, healthy storage Seal with a vane when sliding back and forth 5-6 times to ensure that the seal is tight, to avoid pumping compressed and then into the air Silicone plug is to prevent leakage, when the suction does not affect, after pumping tighten the lid