Featuresr mini in size and light in weight but bright enough to dispel darknessr flexible silicone band easy to install and fit to different diameterr has three modesquick strobe slow strobe steady satisfy most needs at nightr aluminum alloy housing water resistant and durabler easy to use press switch for once the light be will bright and press it again to change lighting modesr at least 240 visible angler powered by 2 cr2032r nice light for rides at low visibility condition