If you're building a display or exhibition, or need some very heavy duty buttons for a computer interface, then these 100mm USB Custom Keyboard Buttons from PMD Way solve the problem. And free delivery! The buttons emulate a USB keyboard. By default they're set to the "Enter" button, however you can use a free software package (Windows only) to change the USB keyboard button that these buttons emulate. Each button has a 1m USB cable. Use the options menu to select your required button color. We also have smaller 62mm buttons if required. Dimensions: Don't forget to check out our full range of buttons if this doesn't meet your needs. And as always, all orders receive free delivery. And remember ... if you: can't find what you need not sure what to order want a bulk deal need technical support or just want to have a talk ... Please email us via [email protected]. To keep up to date with new products, news, tutorials and more - we're on x, Facebook, Instagram, threads, reddit, and instructables.