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(big key): Approx. 2.8 x 0.4 x 6.3cm/1.10 x 0.16 x 2.48inch Size(small key): Approx. 2.3 x 0.3 x 5.5cm/0.91 x 0.12 x 2.17inch Package Includes: 2 Pieces Key Locks (1 set)
