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 3.94" - 4.72" (100mm - 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.