Material: RUBBER . Torque Arrestor • To be used with all submersible pump installations using polyethylene or solid pipe to 300 feet and up to 3 HP pumps • When installed around drop pipe and expanded to inside diameter - prevents the pump and pump cable from hitting the side of the well casing due to the starting torque of the pump's motor • Includes 2 stainless steel clamps to clamp to drop pipe when arrestor is expanded • Easy installation