• Allows you to trace perfect 120° lines for fletching tape on arrows (Spin Wings, XS Wings, Eli Vanes, Spider Vanes etc.)
• Works on all world archery shafts (23/64" and smaller)
• Mark arrows without nock of arrow in
• Place the end of the shaft in the brass pin and secure arrow with the nylon fasteners
• Draw lines on your shaft to mark each place a vane should be placed