Features: Challenge minds with this alloy Number Slide Puzzle, featuring a classical grids design that enhances problem solving skills and numerical cognition through sliding gameplay. Crafted metal tiles gliding smoothly within the 7x7cm frame, combining scratch resistant alloy construction with rounded edges safety features for endless educational entertainment. Ideal for children aged 3+ developing STEM skills, puzzle enthusiasts seeking portable challenges, and educators incorporating math tools in classroom activities. Perfect for game night, long distance travel entertainment, or classroom teasers its compact size fits effortlessly in backpacks while encouraging collaborative problem solving. This etal puzzle doubles as a cognitive development tool, with its weighted tiles providing satisfying feeding during play or group strategy. Specifications: Component: Metal Size: Approx.7x7x0.7cm/2.76x2.76x0.28inch Quantity: 1 pc Package Includes: 1x Sliding Puzzle note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.