10 Pack Breeze 200-28H Aero-Seal Industrial / Aircraft Hose Clamp Effective Diameter Range: 1-5/16" - 2-1/4" (33mm - 57mm) 410 Stainless Steel Slotted Hex Screw 9/16" (14.2mm) Stainless Steel Band Original patented worm-gear clamp Heavy-duty four piece Quadra-Lock construction used for aircraft and heavy-duty industrial applications