Specification:-Weight:about 90g-Length: 11cm (no-stretch)and 11.6cm (stretch)-Diameter: 3.2cm (head) and 2.6cm (rear)-Material: high-quality metal aluminum-3 modes: Super Bright(240 lumens)， Normal(80 lumens)， Blinking.-Battery: 3 x AAA Battery (Not included)-Color: black Light mount/holder:-4cm Diameter for Bicycle-3cm Diameter for Flashlight-24 x 70 x 5mm Bicycle Anti-slip Pad-20 x 68 x 1cm Flashlight Anti-slip Pad Notice:-Waterproof but not be used in water.-Removes battery if not in use for long period. Package Includes:1 x CREE Q5 Flashlight1 X AAA Battery Holder1 x Bike light mount holder