High quality arrow spinner. Checks straightness of shaft, nock, broadhead, insert, and point. Perfect tool to check nock, broadhead, insert and point alignment. Spinners are adjustable in length to support all lengths of arrows. Low friction wheels that keeps on spinning. Non slip pads for extra stability. High quality arrow spinner from Avalon. Checks straightness of shaft, nock, broadhead, insert, and point. Perfect tool to check nock, broadhead, insert and point alignment. Spinners are adjustable in length to support all lengths of arrows. Low friction wheels that keeps on spinning. Non slip pads