Calvin's 4x4x4 Inverted Glassy House Cube V4 (Green House, Glassy Roof)
Brand : Calvin's puzzle
Color : Black Room, Glassy Roof (stickerless)
Weight : about 140g
To solve the cube, you have to retain it to the original state. It change shapes, fun to solve.
High quality, good for collection or as gifts to friends/families.
Enjoy !