Description: 100% Brand new aftermarket/replacement Boat Pulley Block. Captive Lock universal head; Exceptionally high working loads; Low maintenance, long service life. Self-lubricating ABS sheave ensures low friction and extreme durability. Swivel pulley block designed for fibrous rope of 12mm diameter, Working Load Limit 1500 lb. 316 Stainless Steel Hook, ABS Plastic Sheave, corrosion-resistant, sturdy and durable. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock universal head can be fixed in either of two planes, or free to swivel as required. Specification: Size (LxW): Approx. 90x12mm/3.54x0.47inch Diameter: 41mm/1.61inch Package Includes: 1 Piece Boat Pulley Block Note: Please allow 1-3mm deviation due to manual measurement.(1mm=0.04inch) Please check the details and make sure it will meet your need before purchase.