Kids Puzzles -Zinc Alloy Locking Keys Puzzles Brain Teaser IQ Test Magic Educational Toy Highlights generic brand Zinc Alloy Locking Keys Puzzles Brain Teaser IQ Test Magic Educational Toy Description: Children Adults Mind Game Training Metal Interlock Keys Puzzle Interlock IQ Test Magic Puzzles Toy Good gift for your kids Good for creative thinking and improve both your IQ and EQ. Perfect gift - For every occasion! for Christmas/office gifts etc. 3D puzzle can take anywhere. Material: Metal Specification: Color: Silver and Gold Big Key Size: Approx. 7x2.6x0.6cm/2.76x1.02x0.24inch Small key size: approx. 6.2x2.5x0.6cm/2.44x0.98x0.24inch. Package includes: 2 Metal Keys Puzzle Toy Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item Due to manual measurement, there may be some error in size from 1 to 2 mm