About this item

• Material: aluminum alloy. Packing quantity: 1PC.
• The ruler has two measurement units, just small adjusts, can improves your archery accurate so that the bow can be used perfectly by yourself.
• Easily install all sizes of nocking points and retainer clips without damaging your bowstring.
• Strong, corrosion-resistant, durable, not easy to fade, and can be used for a long time.
• The markings are legible and easy to use.