ITEM NAME:Chinese Classic Brain Teasers Metal Magical Lock Puzzle for Kids and Adults - Description: Eco-friendly material and high quality Very classic and quite interesting Good for creative thinking and improve both your IQ & EQ After getting each puzzles solved by yourself, then you will get achievement, but we still attach a diagram to satisfied with some people Great gift for adults and children, also a premium ornament as a home decoration Material: Alloy Size Chart: Height: approx. 17cm/6.69inch Package Includes: 1 Piece Wizard Ring Puzzle SKU: DMO0016039861014369.1 Piece Wizard Ring Puzzle. Material: Alloy. Very classic and quite interesting. Size Chart Good for creative thinking and improve both your IQ & EQ. Eco-friendly material and high quality.