ALUMINUM Nock On Silverback Custom Thumb Button Bowhunter gear This simply goes on your

This simply goes on your scale to hold your arrows

This Product is only guaranteed to fit the Tru-fire Synapse

Release in Picture (Carter Chocolate shown) is example of what your release could look like and is NOT INCLUDED

This Product is only guaranteed to fit the Scott Sigma

ALUMINUM Nock On Silverback Custom Thumb Button Bowhunter gear This simply goes on yourThese 3 4" round x 1" long Thumb Release Knobs Buttons are machined from high quality aluminum. The 4 40 threaded hole is offset from center for more adjustment to find that sweet spot. These are a great way to increase accuracy while giving your release a personal touch. These use a bolt to attach to your release, the hole for the bolt to go thru should be approximately. 089". You will receive 1 Button Knob with your choice of diameter: 3 4',5 8", or