Fluorescent green, combat-style follower with projection on the head, instantly shows by sight, or by touch, if mag is empty. Molded from non-rusting, high-impact grade ABS with tapered tail to help prevent magazine spring bind and improve reliability. Mfg: Scattergun Technology SPECS: 1.7'''' (4.5cm) long, .91'''' (23mm) diameter. 12 ga. only. Fits Remington 870, 1100 and other miscellaneous shotguns with no detents in magazine tube.