No panic With this thumb release, you can hold with and really execute . Come with 1pcs hex keys, to adjust sensitivity of the multi-position barrel trigger, for tightening two screws on the back. Four finger model provides extra grip protection, comfortable in the hand while the button sits beautifully in the thumb. It is important to always take a backup release in your hunting package. colour: random colors, 't accept the specified color : aluminum Size: 10.6x6x3.5CM Package Contents: 1 x spreader 1 x wrench Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.