Vibration-Dampening Strut Clamp, Clamp Material Steel, Clamp Material Finish Zinc Chromate, Clamp Type Strut Clamp, Cushion Material Polypropylene, For Maximum Outside Diameter 1 1/2 in, For Strut Channel Width 1 5/8 in, Installed Height 2 27/32 in, Maximum Operating Temperature 145 Degrees F, Mount Type Strut Channel