KINGOU Wooden Double Color Plum Lock Lilac Locks Logic Puzzle Burr Puzzles Brain Teaser Intellectual Assembly Toy Material: Rubber wood. Size: 2.95 x 2.95 x 2.95 inch Active your brain. Great gift for kids, friends and elders, nice toy for entertainment and decoration on your table. Recommended for ages 5 & up, children should be used under adult supervision, water-based paint, touch smooth. Easy to take apart, if you can get the point it is also easy to assemble. Difficulty Rated: To make it challenging and fun, parcel without paper instructions, if you need solutions, please contact us.