Specifications:--Product Name: Air column bag--Size:10cmx15m/3.9inx59in20cmx50m/7.8inx197in25cmx50m/9.8inx197in30cmx50m/11.8x197in35cmx50m/13.7x197in--Material: PE + PA 9-layer nylon coextrusion film (super toughness)--Air column width: 3 cm before inflation and 2 cm after inflationFeatures:-- material blowing film, material blowing film, good heat sealing, strong toughness, good cushioning and shock proof effect, safe and non-t0xic.--High quality air valve, sealed without air leakage, put an end to air leakage, more time-saving and labor-saving--Easy to cut, cut as much as you need--The way of inflation is to inflate the air inlet.--Super toughness speaks with facts and bears an adult weight.Package Includeds:--1 x Air column bag a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a