1. Made of plastic. 3 pedals. More setting function.2. USB foot switch can bear weight of more than 100kg. Solidly-built and durable enough for use.3. any key on keyboard, combination key, mouse and character string. Easy to use and convenient.Application: various intelligent control game, instrument control, testing, piano keyboard test, hospital image scanning, etc.Name: USB foot switch Type: FS3-PColor: black Switch mode: plastic triple foot switch Size: about 376 x 121 x 43 mmDescription of products:The USB foot switch is an auxiliary equipment that connects with computer. By using software to specify any key or combination key, you can control the key with foot switch. When you are inconvenient or too , you can achieve the function of manual keyboard operation or simulating mouse with foot switch. USB metal foot switch. Convenient to use.A computer can connect with several foot switches.The system support: defined software as Windows key. After setup, it can be applied to:/Win 2000/Win xP/Win Vista/Win 7/Linux/.Material:PlasticPackage Content1 x USB foot switch 1 x CD Note:Light 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.