Elong 12X Crossbow Bolts Aluminum Hunting Arrows Moon Nock Changeable Points Ship from NJ or CA,12 pcs/pack, 20 inch Shaft Length, 7.74mm(I.D.), 8.73mm(O.D.) For many kinds of crossbows, the crossbow bolt is suitable for practice or outdoor hunting. Aluminum Shaft material 7075-T6 quality aluminum durable and light weight good for shooting and hunting, arrow weight: around 430 grains/pc The common using of the points-in order to replace the points conveniently, it used the common using points, so the arrow will be loose during transportation, please tighten it before use. Plastic Half-moon Nock, 125 Grain Screw-In Points, 4 inch TPU Vanes (if the vanes bent you can use 80-90 hot water to recover is)