Built from 17-4PH's stainless steel the T3? is 320% stronger than our competitor's 6061-T6 aluminum. Spider Clip Blade retention system allows user to tune their blade deployment. No blade pre-deployment. No rubber bands or o-rings. Field tip profile in closed position. Customize blade tension with innovative Spider Clips. Great for high speed bows or crossbows. 1.5" cutting diameter, 100 grain. 3 pack.