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 Material: Alloy Size Chart: Size: Approx. 3.3 x 1.3 x 3.3 cm/1.30 x 0.51 x 1.30inch Package Includes: 4 Piece Square Locks (1 Set)
