Cycling Speedometer Bicycle Computer Mountain Bike Code Table Waterproof Mechanical Odometer

Features: Mechanical odometer, no battery requires, easy to use, precise measurement. Made of good quality materials, sturdy and durable, waterproof, suitable for all weathers to use. Suitable for 26in, 27.5in, 28in, 29in bikes. Easy to install. Let you know the total mileage, single mileage, MPH. With a reset knob, swivel it to make the data clearing. Specification: Material: Plastic Color: as picture shown Size: Approx. 12*8*5.5cm 4.72*3.15*2.16in Weight: Approx. 342g Package List: 1 x Mechanical Odometer 1 x Cable 1 x Adapter