3 Pieces Brain Teaser Metal Puzzle Toy 3D Unlock

3 pieces brain teaser puzzle 3D unlock Metal puzzle toys As a recreational game to kill time, the brain teaser puzzles are helpful in improving logical and creative thinking, and also provide you with an educational entertainment activity these metal brain teaser puzzles with no pointed edges, so you will feel comfortable to touch They can bring you a sense of accomplishment when you succeed Widely applicable: these 3D unlock interlocking puzzles are suitable for people over 12 years old