More Than 3X Space Savings：Taking away every bit of air until it tMulti purpose use: It is an essential product for saving family storage space and outdoor tourism. It can compress and store blankets, quilts, clothes, pillows, dolls and other items. Durable：It is made of special 7-layer co extruded film, which is softer than ordinary film and has better puncture resistance. It can be reused for a long time. Good Sealing Performance：double sealed zipper with slider makes the sealing effect better. The patented new triple seal turbine valve is used to exhaust air quickly without returning, and it can also be used for direct exhaust and compression by hand, which is more convenient to use. Usage：It is equipped with a convenient manual pump, which can also be used together with a household vacuum cleaner. Put things in, pull up the zipper, dry the air, and then close the lid. Quantity and Size：8 bags for one set. 3 x Jumbo (40x30 inches), 2 x Large (32x24 inches), 3 x Medium (28x20 inches) are suitable for storing items of all sizes. NOTICE: Please pinch the zippers to make sure they are totally clipped and do not take off the pink gasket from valve. Otherwise bags can not be vacuumed. If bags leaking even though totally zip lock, do not hesitate to contact us for replacement.