Strong Rechargeable Cordless Pump: -4kPa Compression This vacuum pump can energize 90 bags with a single charge and compress each bag in 10–20 seconds. Three Sizes to Suit Every Need: includes 29" (small), 34" (medium), and 39" (large) vacuum seal bags that accommodate everything from knitwear to queen-size comforters. These bags are scientifically intended to enhance space efficiency and keep your storage secure and orderly. Upgrade PA+PE with a See-Through Bag for stronger protection, a thicker design, and improved PA+PE material. You can quickly see what's inside thanks to the transparent design—no more rummaging through bags! Save 3 X Space: Optimize suitcase space for trip or seasonal storage, cut down on large apparel and bedding by 70%, and save three times the amount of room. Compact size that fits in carry-ons is ideal for families or students that require more room in their suitcases.