IRQ Traditional Hunting Broadheads Glued on Archery Field Points Tips for Wooden Bamboo Arrows Metal hunting arrow tips 150grain Length:2.1inchCutting diameter: 0.59inch Standard 5/16th thread Glued-in field points for traditional wooden arrows,bamboo arrows,etc.(arrow shafts about 8mm) Blades archery arrowheads for shooting,hunting,targeting practice.