Bicycle Chronograph Stem Mountain Bike Wireless Chronograph Stem LCD Luminous LCD Large Screen

1. Material: Metal
2. Dimensions: 210 x 54 x 47mm
3. Weight: Net weight is about 300 grams
4. Suitable for bicycle horizontal tube size 31.8mm, vertical tube size 28.6mm
5. Bicycle stopwatch stem with luminous display function
6. Power supply: CR2032 button battery x 2