Length: 0.4in. Height: 0.4in. Width: 0.4in. Fastening: Clip-On. Design: Logo, Translucent. 72 Hours in Constant Mode, Battery Powered, Constant of Flashing Ultra Bright Light, LED Light, On/Off Power Button, Provides 144 Hours in Flash Mode. Battery Type: CR2032. Suitable for: Runners, Walkers and Cyclists. Fabric Technology: Waterproof. Ref: UTCS1042