Features: brand new and high quality Tools are designed to be simple to use, yet durable enough to withstand the harsh conditions. A must-have primary drive locking tool for most owners. This is a good helper to lock primary drive in place while removing or installing primary drive components. Designed to remove and install nut, lock the reverse pulley in the proper position. Easy and quick to replace the pulley or sprocket. Specifications: Material: Metal Suitable for 1936-2006 Big Twin, 1999-2006 Twin Cam Size:as the Picture Show Package Includes: 1 Set Main Drive Double Cam Locking Tool note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is about 1-3cm.