Set of 10 Compression Bags: 5 Medium and 5 Large, Hand-Roll, No Vacuum Needed, for Travel and Clothes Compression bags recommended for travel, hiking, and outdoor activities where luggage tends to be bulky, and for organizing clothes. Simply roll by hand to release the air. No backflow. Easy-slide zipper allows you to close the bag by sliding the slider from side to side over the zipper. 【Product Specifications】 M Size: 30 x 40 cm (usable size 27 x 32 cm) L Size: 54 x 38 cm (usable size 35 x 46 cm) Material: Bag/Nylon, Polyethylene; Slider/Polypropylene M Size (5 bags): ¥490 L Size (5 bags): ¥590 950