2 Inch ID Duct Hose, Plastic, 6 Foot Section [91-51P] When fully stretched is 6 foot and compresses to 8" See Also Our Cloth Version for Vintage Vehicles # 91-51C Excellent for use with aftermarket A/C and Heater Defrost units and replacing old deteriorated cloth duct hose in Chevy, GM, Chrysler, Dodge and Other Vehicles. Not suitable for vacuum cleaners or medical equipment. Made in the USA !!!