[Material and Size]: This fitness equipment display instrument is made of plastic, with a product size of 22x15cm, making it compact and easy to install on various fitness machines. [LCD Display]: It features a large LCD display screen measuring 57.5x130mm, providing clear visibility of workout data even during intense exercise. [Advanced Hardware]: The device includes a control board, signal processing for amplification and filtering, and a module for seamless connectivity and accurate performance tracking. [Multifunctional Use]: It monitors exercise data and displays time, distance, calories burned, watts, speed, and pace on the LCD screen. [Application]: The speedometer and odometer can be used on various fitness equipment including stationary bikes, treadmills, exercise bikes, and fan bikes. Color: Black Material: Plastic Specification: Without Heart Rate Package Contents: 1 x Exercise Bike Monitor Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3cm.