Arrow Nocks are the old school version that were used on classic stunt kites such as the Hawaiian 16, North Shore Extreme, California Wasp, Chicago Bee, and many others. Arrow Nocks are glued on to Nock Inserts when utilized for fiberglass tubing. When used with wood dowels, simply taper the end of dowel with pencil sharpener and insert dowel into the Arrow Nock. Fix in place with electricians tape or glue. Available in four sizes.