Durable woven-wrap layered glass offers exceptional strength to properly disengage crossbow safely every time. - Ultra-dense steel front-end tip built to withstand ground impact without burrowing below the surface. - Highly visible vanes make it easy to locate after discharge. - Equipped with moon nocks to fit a majority of today's competitive crossbows. - NOTE: Bolts inserted with moon nocks. Fit with moon nock so it will discharge on all models of crossbows.