Superior lobster hauling block. Size 4, low lip. Sheave diameter is 4. Weight is 7. 56 pounds. Throat dimensions: width is 2-5/8, height from sheave is 4. 5 and height from lip is 3.75. Overall block height is 14.25. Zinc plated with safety latch and greasable swivel. Forged steel hook. Aluminum sheaves. Heat treated aluminum castings. Stainless steel fasteners. Bearing: tapered roller. Shields: cast-in labyrinth. Seals: Neoprene lip on stainless steel. Capacity: 2000 pounds.