Sensor Shield V5 V5.0 for Arduino Apc220 Bluetooth Analog Module Servo Motor Color: Blue & Black size: 57*57*19mm Sensor Shield allows you to connect to various modules like sensors, servos, relays, buttons, potentiometers Each functional module has buckled port with VCC, GND and Output, which has corresponding port on the Sensor Shield, connected with a plain 2.54mm dual-female cable you may start playing already Buckled brick cables are like cement for bricks, make the connections easier, secure and more professional looking