1. [Bracket Diameter] Easy to install and use, comes with LCD screen display bracket, suitable for 22.2mm/0.9in handlebars. 2. [Simple to Replace] Can be installed and disassembled quickly and effortlessly, no tools are needed, to meet your need. 3. [ Material] LCD display is made of high quality ABS material and is , waterproof and , and long service life. 4. [See Clearly] The backlight allows you to see the screen clearly even in the dark environment, and the key operation is fast and convenient. 5. [Large Screen] LCD display makes it easier to view the data on the panel, and the status is displayed on the large screen more intuitively. Item Type:S866 LCD Display Water Proof Grade:IP65 Communication Protocol:UART Matching Voltage:24V 36V 48V Weight: .138g/4.9oz Bracket Diameter:. 22.2mm/0.9in Plug: SM Plug (Ordinary Plug) Color:Black Material:ABS + Acrylic Package Contents: 1Set * S866 black and white screen bicycle monitors Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.