Tube clamps give you the ability to move or remove sections of tubing, while retaining strength and durability when mounted. Summit Machine tube clamps are ID interlocking for added strength. Available in 3 sizes: Fit 1.5" x .120W (1.25" ID) Fit 1.75" x .120W (1.5" ID) Fit 2" x .120W (1.75" ID) Full assembly includes two pieces and hardware. Mfg. from 1045CF.