Set of 10 Compression Bags: 5 Medium and 5 Large, Hand-Rolled, No Vacuum Needed, for Travel and Clothing Compression bags are recommended for travel, mountaineering, and outdoor activities where luggage tends to be bulky, as well as for organizing clothes. Simply roll by hand to release the air. No backflow. Easy slider included; sliding the slider left and right over the zipper seals the bag. [Product Specifications] M size: 30 x 40 cm (inner size 27 x 32 cm) L size: 54 x 38 cm (inner size 35 x 46 cm) Material: Bag/Nylon, Polyethylene; Slider/Polypropylene M size (5 bags): 490 yen L size (5 bags): 590 yen 950