Bitzenburger Precision Die Cast Clamp shoe_size_8 Grivory® (glass nylon) handles with rubberized archery targets Grivory® (glass nylon) handles with rubberized color TPR inserts ensure a secure non slip grip and are available in blaze orange strategically designed to position the foot lower in the boot right and left helical clamps are ground with a radius to achieve a true helical fletch• Hollow recess allows for thumb and fingertip control preventing slippage in the hand• Graduated scale at the rear base of the clamp allows for consistent spacing of feathers and vanes accurately from the nock• Knife edge on base of the clamp eliminates build up of surplus glueNote: The steel plate is cased into the straight clamp • Constructed of die cast alloy• Clamp is precision ground to assure identical blade matching