Add your own custom parts to the LeoStick to build projects or add more I/O connectors. Fits on the top of the LeoStick and provides you a free matrix of plated-through holes for your own use. • 64 general-purpose plated holes for your parts • All Arduino I/O headers brought up for your use • Includes male header pins • Gold-plated surface • Dimensions: 36(W) x 19(H) x 2(D)mm Support Email: support@freetronics.com