This is by far one of the best-strongest Holding tools you will find for under $100.00. This is a brand new Cam Securing Kit Used for securing cam sprocket from rotating during R&R of cam nut on OHC engines. Comes complete as shown with three (3) pairs of different size Lock Pins. Lock Pins slide in a milled slot which are secured in place with an Allen bolt from behind. This allows access to a wide range of sprocket sizes.For use with many OHC cam engines. Very useful on many Asian import engines, especially transverse mounted V6 such as the Nissan VG30 in Maximas, as well as the Toyota 3VZFE and IMZFE used in Camrys. The rear pulleys on these models are in very close proximity to the shock tower making removal and replacement difficult without this locking device.