1 Set Controller Module Main Controller Board DIY Kit w/IC Easy Installation for USB Cable Clamp Ma-key 40JEOOTDTY Features: Made of high quality material, durable, sturdy and stable to use. It allows you to connect all kinds of fun stuff as inputs. It's a set of inventions that makes a computer think that almost everything is a keyboard. This kit uses high-resistance switching to detect when a connection has been established even with non-conductive materials. It connects to a computer using the Human Interface Device (HID) protocol, which means it can work as a keyboard or mouse. Specification: Material: PlasticCommunication Interface: USBPetate Includes: 1 x Controller Board10 x Alligator Clips1 x USB Cable10 x Jumper WiresNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.