LimCube Dual 3x3 V1.0

The FangShi LimCube Dual 3x3 V1.0 is a cube in a cube puzzle. There is a standard 3x3 puzzle that is visible on the exterior, but there is also another 3x3 puzzle that is visible in the 3x3 grid that forms the center piece on each side. The solver must solve both the internal and external 3x3s in order to complete the puzzle.

The puzzle features embedded tiles that won't wear off easily.