Size: cube edge 5.7cm, wheel diameter 5.8cm, overall height 7.8cm
3x3x3 cube with round add-ons. The Wheels allow 45 degree turns and
thus can be mixed up more than a 3x3x5 Cross Cube.
Movement of the cube is good, of the wheels acceptable.
Maybe they need a little bit of lubing.
The stickerless design with coloured plastic avoids the trouble with
lost small stickers and is of course also faster to produce.