ITEM NAME:Matrix 8 Keypad Keyboard Board Module 8 Button Tactile Switch for Arduino b+ Features: 100% Brand new and high quality!! 8 Key Small in size Save space More convenient to use Expand outside microcontroller keyboard for arduino AVR PIC Specifications: Color: Blue Size: 37mm x 32mm Package included:.1 x Matrix 8key Keyboard Module. Color: Blue. Size: 37mm x 32mm. Small in size.