R.U Ball Pro Diamond Extreme Thumb STD Caliper The TRU Ball Pro Diamond Xtreme includes independent caliper jaws, a standard caliper torque-free head that swivels 360 degrees and is 7-16″ shorter than the original Pro Diamond for more draw length and more fps. Inner ball/ramp firing mechanisms for a smooth release every time. Adjustable trigger tension; machined-aluminium and steel construction. Uses back tension to fire – pull the trigger to open jaws, let up to close. The TRU Ball Pro Diamond Xtreme is completely silent when loading and hunting and can sit on your bowstring or rope loop when hunting. Move or remove thumb extension to fit your hand. Many shooters who use a Boss Series release, switch to the Pro Diamond Xtreme when hunting because the release has the same dimensions without the cocking bar. When you’re stalking your next trophy, the last thing you should have to think about is your release. The T.R.U. Ball hunting series of releases give you peace of mind. These releases are silent and hang on your D-Loop to allow your hands to be free while waiting for your trophy buck or using your game call. Add a strap or a lanyard to the handle for extra draw ability. Completely silent for successful hunting Uses back tension to fire. Easy to open and close jaws Head swivels 360 degrees Adjustable sensitivity screw Pull the trigger to open, let up to close Shot by Hall of Fame bowhunter and bowhunting legend Bob Foulkrod You can hang your Pro Diamond Xtreme on your bowstring while you are in the field V-Lock strap or lanyard can be added and is available as an option Available in camo or black. Please specify colour choice Proudly CNC machined and assembled in the USA T.R.U. Ball continue to make archery better. If you want a reliable hunting release, then the T.R.U. Ball Pro Diamond Xtreme Standard Caliper Jaw release aid is for you.