4 x 4 Matrix Array 16 Key Membrane Switch Keypad Keyboard for Arduino AVR PIC (3 Pack)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Adhesive back can be securely affixed to the surface of chassis</li><li>8 pin head</li><li>3 pack for one price</li></ul></div><img src="http://ecx.images-amazon.com/images/I/412PlZOjeML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21DjnljrTlL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31lICO7ItjL.jpg" noproxy>