This is a handy GPIO label reference board for all raspberry Pi verison.
It is gold plated, and a rigid plate.
It also has a hole to hang on your key chain.
http://wiki.52pi.com/index.php/RPI_B%2B_GPIO_Reference_Board_SKU:EP-0021
Package Includes: 1 x GPIO Reference Board (Raspberry Pi Not Included)

Technical Details

Product Details

Package Dimensions
Width : 4.92 inch
Height : 0.2 inch
Length : 5.51 inch

Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B01N7804PR