High quality Premium HD clamp with strong clamping force for a wide range of hoses BOOST products Pack of 5 HD clamps, black, 44-56mm Highest Stability clamp of this kind With black metal head JUST FROM US AVAILABLE IN BLACK AND NOT BLUE LIKE EARLIER clamp with black head made of metal for high pressure applications. Is tightened with an nut and saves the hose from damages. Can not be compared with a thin standard clamp. Band Width: 11,7mm Size: 44mm up to 56mm Please pay attention that Silicone Hoses are always measured by the Inner diameter. You have to add 8-10mm Wall Thicknesses to get the Outer diameter! Note: Pack of 5 HD clamps!