Flexible to operate. Material Nylon is stretchy and both ends are open, very well fit flashlights tube dia.1.4"(Max), flashlight Length more than 5". Such as Anker LC40, GearLight S2000, Fenix TK16, TK20, PD30, UC35 E35, Surefire G2X E2T, UltraFire 501B 502B 800, NiteCore P10iX, P20iX, P23.
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