Cast bronze clamp and 18" Tite-Grip copper strap for bonding to pipes up to 4" diameter. Strap (IP-49Y) is shaped around pipe. Casting is positioned within 1/8" of pipe and screw is tightened on flat part of casting. Screws on beveled edge are tightened to draw strap tight. Other length straps available upon request. Wt. 1.21 lbs. each.