Blue Silicone Radiator Hose Kit (MMHOSE-TINY-07BL) by Mishimoto. Includes: 8 Silicone Hoses, Inner Diameters: Hose 1, 2, 3, 4 - 32mm, Hose 5 - 15mm, 17mm, Hose 6 - 16mm, 18mm, Hose 7 - 31mm, Hose 8 - 7mm. Outer Diameters: Hose 1, 2, 3, 4 - 41mm, Hose 5 - 23mm, 25mm, Hose 6 - 24mm, 26mm, Hose 7 - 40mm, Hose 8 - 13mm. 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!