Features: 1. Large screen- Clear large screen easy to read data 2. Waterproof - Daily waterproof don\'t worry about rainy days and humid environments 3. Easy install - Easy to install with mounting accessories 4. Application - Perfect to use when hiking clmbing riding and other activities 5. Backlight - Wireless solar bicycle odemeter with LED backlight Notice: 1. Due to the different monitor and light effect the actual color may be a slightly different from the picture color. 2. Please allow 1-3cm differs due to manual measurement. Specification: Size: (height * width*thickness) 7.2*3.9*1.2cm Material: PVC Style: wireless bicycle computer Color: black Include: 1 x Bicycle computer(built-in 2 button battery) 1 x Magnet head 1 x Sensor 1 x Extension bracket 1 x Rubber slice 2 x Plastic slice 1 x Package box 1 x Rubber loop includes: 1 x Bicycle computer(built-in 2 button battery) 1 x Magnet head 1 x Sensor 1 x Extension bracket 1 x Rubber slice 2 x Plastic slice 1 x Package box 1 x Rubber loop "