TruFire’s Synapse Thumb Release delivers outstanding versatility and a massive array of customization options. It utilizes a true double-sear operation, and features precision milled internal stainless steel components to ensure exceptionally crisp operation and flawless trigger activation lever cocking. The thumb button can be configured in multiple positions and features lockable trigger travel and trigger tension adjustments. Trigger pressure can also be adjusted between 1.25 to 20 ounces, and can be adjusted without having to change springs or disassemble the release. In addition, the Synapse Thumb Release is built on a solid brass platform, and gives archers the choice of a 3-finger or 4-finger configuration. Features of the Synapse Thumb Release: Precision milled internal components Adjustable trigger travel Adjustable trigger pressure Weighted brass handle Aluminum anodized cover and components Crisp operation Multi-position thumb Cord loop TruFire Synapse Hammer Throw Silver Release Aid SYN-S