Keep your ammo organized and yourself safe! Faxon Firearms' Magazine Marker Bands are the ideal quick solution to readily identifying the ammunition in the magazine. Marker Bands are bright, solid colors to help you keep them straight. Add them to your rifle to make an easy color combo to avoid catastrophic discharges. Bands are solid rubber, marked on two sides, with a blank line to mark your caliber. Sold in packs of 10.