Loop Clamp, Bolt Material Zinc-Plated Steel, Clamp Material Steel, Clamp Material Finish Zinc-Plated, Clamp Type Loop, Cushion Material PVC, For Copper Tube Size 1 5/16 in, For Maximum Outside Diameter 1 5/16 in, For Pipe Size 1 in, Load Capacity Not Applicable, Mounting Hole Diameter 0.53 in, Number of Mounting Holes 1, Overall Height 1.56 in, Overall Length 1.31 in, Overall Width 2.5 in, Maximum Operating Temperature 160 Degrees F, Minimum Operating Temperature -25 Degrees F WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. - Nickel (Metallic)