Red Silicone Radiator Hose Kit by Mishimoto. Includes: 2 Silicone Hoses, CNC Aluminum Coupler, 4 T-Bolt Clamps, 2 Worm-Gear Clamps, Mishimoto Lifetime Warranty. Interior Material: Heat-Resistant Embedded Fibers. Inner Diameter: Hose 1 - 0.58in & 0.71in & 2.40in, Hose 2 - 1.77in. Outer Diameter: Hose 1 - 0.96in & 1.05in & 2.80in, Hose 2 - 2.10in. Mishimoto silicone radiator hose kits are made with a dual layer combining high grade silicone and heat-resistant embedded fibers to provide efficient heat reduction and increased pressure tolerance, all with an OEM replacement fit!