ITEM NAME:10pcs 4x4 Matrix 16 Key Membrane Switch Keypad for Arduino/AVR/PIC/ARM Key VCS Descriptio n Product description 100% new high quality Material: ABS Colour: Black Size: 6 * 6 * 3CM Product list: 10 * 4 * 4 membrane switch keyboard Product Description: 8P DuPont head spacing 2.54mm, can be connected to the pin connection circuit; the chassis connected to the pure white label surface can be thrown from the back of the keyboard We offer you what you need! 10pcs 4x4 Matrix 16 Key Membrane Switch Keypad for Arduino/AVR/PIC/ARM Keyboard.Colour: Black. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. We'd like to settle any problem in a friendly manner. 100% new high quality.