Features:Waterproof function With waterproof function, the clock is not afraid of normal splashing water, widely suitable for indoor and outdoor situation.Easy installation The back adhesive sticker makes it convenient to install on the smooth surface, such as bike, wall and so o n.Compact sizeOnly 27.5mm*10mm/ 1.08*0.39inch (D*H)size, compact and lightweight, convenient to carry out, not occupying much installation space.Durable material Made of high quality ABS material, wear resistant and durable, owning long using life span, practical and convenient.Scope of application Widely suitable for motorcycle, electric bike, glass, working table and so on.Note:Please do not take it with you. Because human activity can produce a lot of static electricity, it is easy to lead out the clock to return to zero, leading to the wrong time.Specification:Type: bike mini clockQuantity: 1pcMaterial: ABS plastic + electric componentColor: whiteBattery: button battery (included)Size: 27.6mm*10mm/ 1.08*0.39inch (D*H)Net weight: 6.8g/ 0.24ozPackage:1* bike mini clock2* sticker