1---Quality material: The 3D cube maze puzzle is made of high quality ABS plastic, durable, non-toxic and odorless, eco-friendly. More safer for children to touch. 2---3D Cube Maze Puzzle: Mini metal ball 3D magic cube puzzle is a puzzle toy for adults. Composed of blue, yellow, orange inner 3D labyrinth and transparent shell. Beautifully crafted, exquisite details can be seen everywhere. 3---Great mind puzzles: The children can control the box to make the metal ball escape from the maze cube. Very interesting. It can exercise your hand-brain collaboration ability and cultivate their perception of space and direction. 4---Brain Storm Toy: These 3D maze toys help to cultivate children's practical ability, concentration, observation and logical thinking ability. Can also help adults relieve pressure. 5---Fun Maze Puzzle for Kids: These maze boxes are fun game challenge for kids, without being too hard to get annoying or too easy to be boring. Make your teenagers work for their gift 6---Ideal gift: Each cube maze puzzle comes with a gift box. It is an ideal stocking filler puzzles gift for your family. Size: S: Side length 6cm M: Side length 8cm L: side length 9.5cm