Pi GPIO Reference Board

Connecting wires to the Raspberry Pi GPIO? The Pi GPIO reference board from Low Voltage Labs provides an easy way to make sure you are hooking up the wires correctly. 
Features:

• Only 0.8mm thick.
• Compatible with Raspberry Pi Rev 1 and Rev 2 GPIO.
• Idiot proof, really! You can’t put it on backwards.
• Also makes a great keychain.