The Eastsheen cube is a mechanical puzzle

Mechanical puzzle

A mechanical puzzle is a puzzle presented as a set of mechanically interlinked pieces.- History :The oldest known mechanical puzzle comes from Greece and appeared in the 3rd century BC....

 that is meant to be smoother and faster than regular Rubik's cubes. They are preferred by most "Speedcubers". Note that the Taiwanese manufacturer, East Sheen Industrial Co., Ltd., brands their cubes as "Eastsheen".

East Sheen manufactures three different types of cubes: the 2×2×2 (Pocket Cube

Pocket Cube

The Pocket Cube is the 2×2×2 equivalent of a Rubik's Cube. The cube consists of 8 pieces, all corners.-Permutations:...

), 4×4×4 (Rubik's Revenge

Rubik's Revenge

The Rubik's Revenge is the 4×4×4 version of Rubik's Cube. Invented by Péter Sebestény, the Rubik's Revenge was nearly called the Sebestény Cube until a somewhat last-minute decision changed the puzzle's name to attract fans of the original Rubik's Cube...

) and 5×5×5 (Professor's Cube

Professor's Cube

The Professor's Cube is a mechanical puzzle, a 5×5×5 version of the Rubik's Cube. It has qualities in common with both the original 3×3×3 Rubik's Cube and the 4×4×4 Rubik's Revenge, and knowing the solution to either can help when working on the 5×5×5 cube....

) version that comes in black and white.

Mini Cubes are small 2×2×2s with different straps. Multi cubes are joined 2×2×2s. They are also available in units of 2, 3, or 4 connected cubes. Gift Cubes come with special stickers which mostly resemble a picture on each side when solved.

5×5×5 cube

The Eastsheen version of the Professor's Cube uses a mechanism different from its rivals. The fixed centres hold the centre cubelets next to the central edges in place, which in turn hold the edge cubelets. The non-central edges hold the corners in place, and the internal sections of the corner pieces do not reach the centre of the cube.