Nockturnal Shift Universal Easy Off Nock System Red 3 pk. Super strong clear polycarbonate construction;Waterproof and shockproof design;Easy on/off light system with external switch;Available in Red, Green, Red/Green Strobing colors;Fits X, H, S, and GT arrows;H (white bushing) fits .233 ID shafts;GT (black bushing) fits .246 ID shafts;S (gray bushing) fits .244 ID shafts;X (no bushing) fits .204 ID shafts;Each nock weighs approximately 25 grains;More than 20 hours of lithium-powered battery life;Package includes three lighted nocks, H bushings, GT bushings, and S bushings
