If you are looking for an easy way to get started with soldering or simply want to make a small portable gadget, this set is a great opportunity. "LED cube" is an educational set for learning the soldering skill, with which you get a small electronic game at the end. After you turn on and shake this board, certain leds will light up randomly and symbolize the number, as if a real die had been thrown.
It is based on the Attiny404 microcontroller, programmed in Arduino, and there is a battery on the back which makes this gadget portable. There is also a keychain so you can always carry your new game with you! Soldering is easy according to the markings on the board.