Bow Medic EZ Laser Tuner Tool Black. The adjustable clamp easily attaches to the top cam of the bow. It directs the laser downward to reveal the centershot of the bow which will then determine the exact placement of the arrow rest in relation to the cam and string. Specifications for Bow Medic EZ Laser Tuner Tool: Manufacturer: Bow Medic Color: Black Package Contents: Bow Medic EZ Laser Tuner Tool Bow Medic 7325: EZ Laser Tuner Tool Black