NAP Ignite 4 Broadheads 100 gr. 3 pk. X-lock blade system ensures blade retention on impact;.031 thick ultra-sharp replaceable razor-sharp stainless-steel blades;Individually spin-tested for optimal down-range flight performance;Practice blades included ultra-sharp replacement blades included: one set;1 - 3/16"" cutting diameter 100 grainstable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 1300 Product Group Code: 1300A Inactive: Yes