10 Pack Breeze 9424 Aero-Seal Liner Clamps with Stainless Screw Effective Diameter Range: 1-1/16" - 2" (27mm - 51mm) To protect the hose from extrusion and shear, we extend an inner liner to cover the worm-gear slots. These inner liners are integral extensions of the band, not separate welded or riveted extensions that won't lie true to the clamping axis. There are no bumps under the housing to jeopardize the concentricity of the seal, and no laminated coverings to disintegrate under heat, ultraviolet, chemical or corrosive attacks. Breeze Aero-Seal liner clamps are designed with Quadra-Lock construction which enables more tightening torque to be delivered to the perforations while maximizing vibration resistance.