This is an ATC Steel 8-Inch Snatch Block with a Hook. The outside of the pulley is approximately 8-1/2 inches in diameter; the inside measures 7-1/2 inches. The length of the pulley and hook is approximately 16-1/2 inches. The chain, which is one continuous loop, is approximately 33 feet long with 1-inch long links. The pulley has the part numbers 414M 1-1/2 and 413 1-1/2.This item is used and appears to be in good working order; the pulley rotates freely. This item is in the category "Collectibles\Tools, Hardware & Locks\Tools\Pulleys, Block & Tackle". The seller is "bill_and_kathy" and is located in this country: US. This item can be shipped to United States.