Model OBPushButton Quantity 1 Color Red Material FR4 fiberglass board Features 3-pin connector; Easy to plug and play; Application Ideal for beginner class to test the Arduino or be your first sensor in your project; It was easy be used for Chipkit STM32 AVR ARM and others mirc-MCU Other Allows build electronics projects just as easy as piling bricks; You may connect Arduino/Freaduino compatible boards easily with various digital analog and IIC/Uart interfaces. These the breadboard-less firm connection are prepared to extensive modules like motors sensors relays servoseven buttons Packing List 1 x Octopus digital push button brick 1 x Buckle cable (20cm)