Now in a two-toned wood version - This is a VERY difficult level 5 puzzle. 33 pieces make up the muscle cube. Slowly comes apart, but the challenge is the put-together. A pretty puzzle that will challenge the most gifted puzzlers. Measures about 3" across when assembled. Note, this is essentially the same puzzle as the Hercules cube, only smaller.

Dimensions: 2.5" x 2.5" x 2.5"