Feature: for most cars. Fit for oil fuel hose. Secure tightly with a wrench. Easy installation. Suits for AN4, AN6, AN8, AN10 Braided Hose. Aluminum alloy for durability and strength.Description: AN4 Hose Separator Clamp Hole Diameter: 11mm / 0.43"(D), AN4 Hose Separator Clamp Size: 39x16x12.5mm / 1.54"x0.63"x0.49"(L*W*H), AN6 Hose Separator Clamp Hole Diameter: 14mm / 0.55"(D), AN6 Hose Separator Clamp Size: 45x19x12.5mm / 1.77"x0.75"x0.49"(L*W*H), AN8 Hose Separator Clamp Hole Diameter: 16mm / 0.63"(D), AN8 Hose Separator Clamp Size: 50x23x12.5mm / 1.97"x0.91"x0.49"(L*W*H), AN10 Hose Separator Clamp Hole Diameter: 19mm / 0.75"(D), AN10 Hose Separator Clamp Size: 59x28x12.5mm / 2.32"x1.10"x0.49"(L*W*H). Notes: Professional installation is highly recommended. (No Instruction Include) Please allow 1-3mm differs due to manual measurement, thanks. Package Included: 1 Pcs AN4 Hose Separator Clamp, 1 Pcs AN6 Hose Separator Clamp, 1 Pcs AN8 Hose Separator Clamp, 1 Pcs AN10 Hose Separator Clamp.