Killzone MAXX Replacement Blades, 2 3/8-Inch 100 grain, 6 pack 2 3/8 inch cutting diameter Replacement blades Spring Clip design - no 0-rings or rubber bands Durable, razor-sharp 035 inch blades Features patented "Spring Clip" blade retention system to keep blades closed in flight Massive 2-3/8" cutting diameter for devastating wound channels Durable, Razor-sharp .035" blades Recommended for bows shooting 60-pound draw weights or greater Designed for use out of compound bows up to 350fps