Features: Archery positioning copper buckle, suitable for a variety of bow types. The positioning buckle is made of brass with high hardness and long service life. The net weight of the positioning buckle is only 4.9gr, which does not increase the load on the bowstring. D ring inside the addition of frosted nylon gasket, feel soft, protect the bow string from damage. The position of the arrow is not to make the arrow and the bowstring at a 90 right Angle, but slightly higher, so that the arrow feather and the arrow base reduce contact, and ensure that the main feather is outwards when the arrow is placed. Installation method: Place the copper buckle on the copper buckle pliers, and pinch it tightly at the arrow point. Specification: Material: Brass Style: Black-5PCS, Red-5PCS Weight: About 4.9gr Size :0.26*0.24*0.14in/6.7*6*3.5mm Note: There could be some slight differences in the color tone of the pictures and the actual item. Please allow 1-2mm differs due to manual measurement, thanks. Package Included: 5pcs* positioning buckles No Retail Box,Packing Safely in Bubble Bag.