Silicone Hose, 3 1/2 x 3 inch ID Straight Reducer Color:Blue The 5mm wall thickness results

The 5mm wall thickness results in a 4 1/8" (105mm) OD

On top of all that

75 Lined Hose Clamps for 1" End

35" long overall

This hose is a straight reducing coupler measuring 6 inches (150mm) long overall

Silicone Hose, 3 1/2 x 3 inch ID Straight Reducer Color:Blue The 5mm wall thickness resultsOur silicone hose is built for endurance and performance in custom coolant and intake plumbing applications. Each hose is hand crafted from multiple layers of silicone rubber with polyester reinforcing fabric between the layers. The silicone rubber remains flexible and tough from 50 C to +180 C ( 76 F to 356 F). The outside has a smooth, shiny, "wipe down" finish that is easy to keep clean. These straight reducer hoses are approximately 5 inches long