VERY100 100 Grain Black Steel Archery Arrow Target Point Material: Steel.Hardness: HRC20-25 Surface:Oxidation.Threaded: 8-32 International standard Outside diameter:8mm(0.3inch).Inside diameter:5mm(0.2inch).The broadhead length: 36mm(1.4inch) Note:This is not a toy, do Not shoot at people Generally the delivery time is 10-15 days from China to US by USPS with tracking number.