Mishimoto High Torque Protective Worm Gear Clamps are, simply put, the crme de la crme of hose clamps. Their innovative double-ridge inner shield design both protects the clamped material from cuts and abrasions while also providing superior clamping engagement. The double-ridge design provides concentrated compression force to provide equal 360 clamping pressure and leak free connections. To create a long-lasting, rust and corrosion resistant clamp, we utilized a 304 Stainless Steel construction. Available in a wide array of sizes ranging from 39mm to 120mm to fit everything from vacuum lines to intake tubes. Like all Mishimoto products, this High Torque Protective Worm Gear Clamp is backed by our Mishimoto Lifetime Warranty.