The standard length is 5 feet of 5/16" I.D. (9/16" O.D.) Air/Co2 Tubing made of Thermoplastic Vinyl Hose (Super Vinyl). Color may vary. This tubing will not rot, swell or dry out and is unaffected by normal cleaning compounds. This air line assembly comes with two Plastic Snap Clamps with a reusable clamp design.