Description: Name: Speedometer Support Material: aluminum alloy (bracket), plastic (adapter, etc.) Weight: about 17 grams (net weight), about 27 grams (gross weight) Configuration: Equipped with wahoo, Bai Rui Teng and cat's eye computer sockets, compatible with a variety of computers, adjustable angle design Supported stopwatches:full series (also used as Walker/Blackbird/iGPS, etc.), Maoyan full series, Bai Rui Teng series, wahoo series Packing list: 1 x Speedometer Support Note: Lightand different displays may cause the color of the item in the picture a little different from the real thing. Manual measuring,please allow 1~3mm error,thank you. --Three kinds of computer bases --compatible with most such as for for Brayton and for cat's eye; --Installation of handlebar stand and central viewing angle: the position of the code meter is kept in front of the handlebar stand --the viewing angle is more comfortable; --Adjustable angle: humanized adjustable inclination design.