1. Eco-friendly material and high quality.
2. Very classic and quite interesting.
3. Good for creative thinking and improve both your IQ & EQ.
4. After getting each puzzles solved by yourself, then you will get achievement.
5. It is specially designed to test your brain,helps with practicing concentration and focus.
6. Great gift for adults and children, kids.
Color: Please refer to the picture
Recommended age: >6 years old
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
1 ¡Á Keys Lock
1: Please note diagram is not included.
2: Please allow minor deviation due to manual measurement.
3: The colors may be a little difference for the different monitor display.
4: Make sure that it is suitable for use before buying.
Delivery Time: 2-6 working days
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
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