The T-H Marine Oetiker One Ear Hose Clamp with mechanical interlock offer uniform compression and increased clamping force.• All 304 stainless steel• Narrow band â 7mm• Lightweight design• Specially formed strip edges reduce the risk of damage to the part being clamped• Mechanical interlock allows use of pre-coated materials• Tampering is visible• Fast, simple, and safe installation 7 mm narrow band Specially formed strip edges reduce risk of damage Mechanical interlock allows use of pre-coated materials | T-H Marine Oetiker Stepless Ear Hose Clamps, 1-1/8" (26.9 mm to 30.1 mm)