Quickly and accurately get the data you need! Suitable for most types of bikes. Perfect to use when hiking, climbing, riding and other outdoor actives. Suitable for most types of bikes, such as mountain bikes, folding bikes, , dirt bikes, stationary bikes and so on. Features -Color: Black, Red -Material: ABS -Size: 4.50X4.50X2.00cm/1.77X1.77X0.79in -Note: Powered by (Included) - Works well to measure speeds, riding time etc., a great present to bicyclist or fitness lover. - Small size, lightweight and wireless design make it suitable for most types of bicycles. - Use a simple way to monitor your riding performance, make your riding safe, funny. - Easy installation on your bike and motorbikes, you can install it easily . - A great accessory for bike, easy to install and remove, increasing their cycling safety. Package list: 1 x Bike Speedometer 1 x Bracket Sensor 1 x Strapping Tape 1 x Induction Magnet