The whistle bow design has good performance and can improve the fun of archery. An important tool for archery. Archery heads is not a toy, and pay attention to use. After the , there will be a swish sound, which is crisp and sweet. Archery whistles heads is made of aluminum and copper, with perforated design, sturdy and durable. Whistling bow heads are compatible with arrows of signal whistle, archery, whistle arrow. Colour:Gold+Silver Material:Metal Package Contents: 6 x replaceable arrows Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.