Wasp Jak-X Broadhead 3 Blade 100 gr. 3 pk.. Dual o-rings retain blades during flight and ensure proper deployment on impact. Designed to function properly even with high speed crossbows shooting over 380 FPS. Cutting Diameter: 1 3/4". Package Contents: Wasp Jak-X Broadhead Mechanical crossbow broadhead with Stainless Smart Tip for maximum penetration. Dual o-rings retain blades during flight and ensure proper deployment on impact. Designed to function properly even with high speed crossbows shooting over 380 FPS. Cutting Diameter: 1 3/4.