Description: 【Bike Speedometer】: This product is a versatile bicycle cycling computer, featuring a bike speedometer and bike computer. It's designed to effortlessly recording cycling data, providing multiple functional supports for your biking needs 【IPX6 Waterproof Design】: Fear no weather conditions with our waterproof bike speedometer. Whether it's windy or rainy, you can easily grasp your riding data without any worries 【 Design】: This bicycle cycling computer with large anti glare screen for clear visibility even in bright sunlight. It also comes with an intelligent fast charging system, ensuring you're never left without power during your rides 【Easy Installation】: The Cycling Computer is easy to install and installation can be completed within minutes 【Material & Compact Size】: Made of reliable ABS material that ensures longevity of use. The product dimension is 6.8 cmx4.75 cm/2.68 inchx1.87 inch, which makes it compact and lightweight enough to save space on your handlebar while maintaining practicality and aesthetics Specification: Material: ABS Size Chart: 6.8 cmx4.75 cm/2.68 inchx1.87 inch Package Includes: 1 Bike Speedometer 1 User Manual 2 Rubber Bands 1 Fixed Base Note: Please allow slightly errors 1-2cm differences due to manual measurement.