This kit is available at etsy and ebay.
This kit comes with everything needed to complete the project (shown below) including a battery.
This is a nice kit for beginners to learn to work with solder, or anyone looking to spice up a game of Monopoly...or Chess.
There is a single momentary button, when it is held, a random number will light as it would be displayed on a die.
Step 1: Installing the Trigger.
Step 2: Installing LEDs
The LEDs do have polarity, and CAN be installed wrong. If you look closely, the footprint of the LED is not a prefect circle. There is a flat side on the negative lead. You will also see the positive lead is longer. Take care to align the flat side of the diode's footprint with the flat side of the screenprinted footprint on the board. All of the LEDs do not point the same way. Check the polarity of each LED before soldering it in place.