Baidecor Cylinder Cube Puzzle 3 Layers Size: 3" x 3" x 2" - Material: ABS and PVC Sticker. Non-toxic, lightweight. Smooth turning and excellent rotation, perfect cube puzzle for beginner and puzzle games fans. Become the focus when you play this cube puzzle, get relaxed when boring or flying. This vivid color cylinder cube puzzle improves your kid's cognitive and problem-solving abilities, kids love it. Puzzle games practice brain and improve memory, perfect educational games.