Baidecor Grey Cube Puzzle 3 Layers Size: 2" x 2" x 2" - Material: ABS Plastics. Non-toxic, lightweight. Boys can play their own cube puzzle, cool grey color will be the best choice. You will become the focus when you play this special cube puzzle, get relaxed when you were boring or flying. Feature: smooth turning and excellent rotation. Cube puzzle practice your fingers and brain, perfect educational games.