DONT COLLAPSE! The UltraHose� has a strong corrugated structure that will not collapse or crack like typical rubber radiator hoses. The UltraHose� Stainless Stell Hose Kit is available in 4 lengths; 12\" 24\" 36\" and 48\" for 1-1/4\" 1-1/2\" and 1-3/4\" O.D. water necks. With this many sizes in one kit the UltraHose� is sure to fit almost any hot rod street truck muscle car import or custom vehicle out there. The UltraHose� Stainless Steel Hose Kit contains one UltraHose� Flexible Corrugated Hose two polished billet aluminum smooth hose ends four stainless steel hose clamps and two 1-1/2\" and 1-1/4\" neoprene reducers along with 2 each- 1-3/4\" high strength sleeve adaptors. Also available for heater hoses.