[SPACE SAVING MULTI-PURPOSE：Vacuum Storage Bag uses vacuum sealing technology to minimize the size of your items by extracting air through an electric vacuum pump. You can organize clothes blankets pillows and other bulky items in a limited space providing more usable space at home or while traveling. MOISTURE AND DUST PROOF：Vacuum Storage Bag is designed with double zipper seals and triple seal turbo valve to keep out air moisture dust and bugs. This provides a high degree of protection and improves storage efficiency. "REUSABLE：Our Vacuum Storage Bags are made of high-quality 2.0 material and can be opened and closed repeatedly to allow access to items at any time whether its for long-term storage or short trips the items stowed in the bag are well protected from crushing rubbing or bumping." SAVE TIME AND EFFORT：Using vacuum storage bags can greatly simplify the process of organizing and storing. Simply place the items to be stored in the bag and then use an electric vacuum pump or manually compress the bag to quickly pull the air out. Vacuum organizers are much easier and faster to use than traditional stacking and squeezing methods. 12 PACK INCLUDED：3 Jumbo: 40” X 28”(100cm * 70cm) 3 Large: 32”X 24” (80cm * 60cm) 3 Medium: 28” X 20” (70cm * 50cm) 3 Small: 24 ”X 16 ”(60cm * 40cm) Equipped with an electric vacuum pump.]