The KNetix Lumen Bow Square Multi-tool features a new direction in bow tuning devices. Molded polymer has arrow grips to use with standard carbon and small diameter arrow shafts. Tune your fall-away arrow rests, and any arrow rest with 2-pronged launchers, while the squaring function utilizes the actual arrow. This 3-in-1 multi-tool includes a broadhead wrench, 3 nock tuning slots, and a kisser button gauge. Meet your expectations and never be without KNetix in your archery pack. Product Features: ARCHERY MULTITOOL: 3-in-1 archery tool provides you with a built-in broadhead wrench, 3 arrow nock tuning slots, & a kisser button gaugemeasuring 10.5-inches long. ARROW SHAFT GRIP: Arrow grippers fit standard carbon (7.6mm OD) & small diameter arrow shafts (down to 6.6mm OD)bow square comes in a durable, molded polymer. KNETIX ARCHERY TOOLS: Have the maximum energy potential, range of motion, & ergonomics needed to be ready for your next outing.