Description: *Brand new and high quality *Made of high quality material, and functional *Functions: , speed, distance, calories *Scope of application: magnetic control car, Exercise bike, fan bike, walking machine, waist training machine *Note: You need to buy batteries and magnets by yourself separately, Specification: *material: plastic *Color: Black (the color of the speedometer button is shipped randomly) (As Pictures Show) *Size: Approx. 140*88mm (As Pictures Show) *Battery: 2x AAA batteries (not included) *Weight: about 110g Package includes: 1x Exercise Bike Speedometer(Battery Not Included) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made of high-quality materials,safe,environmentally friendly,durable. Perfect price-performance ratio, save you more money. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund for Damaged/Quality Issues. Speedometer Display For Exercise Bike Exercise Bike Walking Machine.