Plastic material standard specification size(.244~.246) applicable to carbon/fiberglass/wood/aluminum shafts | Press in not glued product easy to set up can change the angle rotated to fit for compound/recurve bow,longbow and traditional bow | Various color for your choice, bright-colored make well visible easy to spot at in/outdoor shooting practice use | Highlight the flight path ;removable in order to suit for multipurpose;can also glue to fix them | High quality products made for extended durability and long lasting use suitable for hunting and target