SureFire Slip On Red Filter for SureFire Flashlights with 1.125-Inch Diameter Bezels Helps preserve night-adapted vision Helps preserve night-adapted vision Slips over bezel and fits SureFire flashlights and weaponlights with a 1.0" diameter bezel, including E1L, E2L, E1B, E2DL, LX2, Scoutlight, Mini-Scoutlight