Brand : Calvin’s Puzzle
Material : ABS plastic, Six-Solid-Color
Dimension : 55mm x 55mm x 55mm
Packaging : small clear box or large display box
Weight : 120g (small clear box) / 170g (large display box)

We shall have 4 types as below,
Constrained Cube 90 - all faces 90 degree constrained
Constrained Cube 180 - all faces 180 degree constrained
Constrained Cube 270 - all faces 270 degree constrained
Constrained Cube Ultimate - - mixed ( including 0/90/180 degree constrained and free turn )


Puzzle info.:
We have been prepared for these cubes for more than half year. This is a co-operated project between Mr. Bao (Mr. Dayan), Tom and HK Now Store. These cubes consist of 3 main parts, the Dayan Bermuda Cube body, mf8 Crazy 3x3 center-core locking mechanism and Tom constrained center parts. The center pieces are relatively large so as to highlight the constrained features.

Video Review : https://www.youtube.com/watch?v=QVQ8DF-Xce0