SENYON Chinese Ring Brain Teaser Toy Puzzle, 16-Piece Set (Red)

◆Package Color: Red　　◆Quantity: 16 pieces　　◆Box Size: 24cm x 19cm x 2.5cm (Each puzzle ring measures approximately 2.4cm to 4.9cm.) This set contains 16 small metal puzzle rings. They're designed for beginners, but can you solve them? They're a game that smartphones and handheld games can't replace, and can be enjoyed by people of all ages, from children 6 years old and up to adults. Finding a way to remove the puzzle ring and taking your time to solve it may be a way to relieve stress. Another way to enjoy it is to put it back together after removing it. Touching it with both hands and thinking with your head has a positive effect on the brain, making it a form of brain training and brain activity. It's also great for taking a break from studying for exams, preventing dementia, stress relief, rehabilitation, and hand exercise, so why not give it a try? Puzzle rings, also known as Chinese rings, are a type of puzzle that originated in China. Incidentally, in China they're also called nine-link rings. Great as a gift, to pass the time, as a magic trick, for children's educational purposes, as a birthday gift, or for transportation while traveling.