Description: 100% Brand New Name: T Bolt Clamp Material: 301 Stainless Steel,nuts: zinc coated Clamp Range: 35 mm - 40 mm or 1.38" - 1.57" Band Thickness: 0.6 mm Band Width: 19 mm or 0.75" Fit for ID 1 1/8" or 28 mm Silicone Hose Fit for OD 1 1/2" or 38 mm Silicone Hose Notice(the way of choose T clamp): 1.Calculate your hose Outside Diameter : Hose Outside Diameter = Hose inner Diameter + 2 X Hose thickness Then,you can Calculate that if your hose is belonged to the clamp range. 2.The value of your hose Outside Diameter should be larger than the first value of the clamp range, less than the second. .