Anko Australia Set of 2 Extra Large Size Space Save Vacuum Storage Bags | Thick Vacuum Storage Bags | Space Saver plastic Vacuum Storage Compression Reusable Ziplock Bags | Free Vacuum Pump Triple-seal formula: It ensures no air passes through and blocks microbial action, odour, water droplets, mildew, and insects/bugs Testing and certification: Tested by renowned British company Intertek and Swiss Company SGS for colour fastness to rubbing. Durable and Long Lasting: Our vacuum storage bags are made of premium quality and transparent Polyamide Polyethylene, and are thicker and stronger than other bags. Saves Space: Shrink bulky or out-of-season items to 60% and 80% for clothes and blankets/quilts, respectively, creating 3X more storage space. Easy to seal: The stay-on clip ensures the pump does not fall off the bag, speeding up the sealing process. The compression bags are tear-resistant and can be reused multiple times with proper care.