The Qubami Cube is a standard 3x3x3 cube with stickers, which offer three solving targets:
(1) by colour
(2) by symbol
(3) as Tic Tac Toe
The cube body was made in four different designs: silver, white, black and blue.
The intention was to find out, what sells best, but in fact all four variants seem to be similarly popular.
Size: edge length: 5.7cm e + 2 x 1mm sticker height = 5.9cm