Wasp Crossbow Broadhead Jak X Mechanical 100 Grain Designed to meet the demands of the modern crossbow Hunter Dual O-ring system retains the blades during flight and guarantees proper deployment on impact, even when shot from crossbows at 380+ FPS Stainless Steel Trocar Tip is Precision Machined and Hardened to Rockwell 46C and Hollow Ground to a near razor edge to blast through bone Razor Sharp .027" blades are Precision Ground and Honed and are always perfectly in line with the Trocar Tip edges to increase penetration 1-3/4" Cutting Diameter - 100 grain - 3 per package - Made in the USA