Features:High-quality materials, sturdy and durableMade of high quality plastic, not easy to age, durable and reliability, with long serving life.wide applicabilityLow cost real trackball works with any PC application.Suitable for computers and game consolesCan be used on a PC as a mouse or connected to your game console. Smooth scrollingThis LED trackball mouse features with smoothly trackball rolling action.unified designThis trackball mouse size is unified in the game console, which can satisfy the design of various game console. Specifications:Material: plastic, metalMouse size: approx.10 x 10 x 4cm/3.94 x 3.94 x 1.57inchDiameter of track ball: approx. 4.5 cm/1.77inchNetwork interface: wireConnection method: wire Package Included:1 x LED trackball mouse 4 x Screws Note: 1. It doesn't support for Windows 10 system for the PC 2. The product you received can be installed by yourself.3. Due to manual measurement, please allow 1-3cm error, please make sure you don't mind before ordering.4. Due to different monitor, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.5. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. About this item High-quality materials, sturdy and durableMade of high quality plastic, not easy to age, durable and reliability, with long serving life. wide applicabilityLow cost real trackball works with any PC application. Suitable for computers and game consolesCan be used on a PC as a mouse or connected to your game console. Smooth scrollingThis LED trackball mouse features with smoothly trackball rolling action. unified designThis trackball mouse size is unified in the game console, which can satisfy the design of various game console. High-quality materials, sturdy and durableMade of high quality plastic, not easy to age, durable and reliability, with long serving life. wide applicabilityLow cost real trackball works with any PC application. Suitable for computers and game consolesCan be used on a PC as a mouse or connected to your game console. Smooth scrollingThis LED trackball mouse features with smoothly trackball rolling action. unified designThis trackball mouse size is unified in the game console, which can satisfy the design of various game console.