The Avenger 262B Eye Clamp with 1 1/8" (28 mm) Socket works like a fast-action version of the super clamp to secure to 1.65 - 2.36" pipe with one hand and three turns of its T-handle. The black 2.5 lb clamp is made of aluminum alloy and holds an impressive 441 lb. Its 1 1/8" (28 mm) receiver accepts "junior" lighting accessories.