The Carbon Express Crossbow Release Bolt is made from a strong & safe durable, woven-wrap, layered glass offers exceptional strength properly to disengage crossbow safely every time. Easy Recovery Ultra-dense steel front-end tip is built to withstand ground impact without burrowing below the surface. Highly visible vanes make it easy to locate after discharge. Multi-functional Release bolts are inserted with moon nocks that fit a majority of today’s competitive crossbows.