This is a puzzle toy set featuring 8 different types of metal brain teaser rings. Players enjoy the challenge of separating and reassembling the two rings without using force. With varying difficulty levels, it's a popular educational and brain-training toy for both children and adults. ・Set Contents: Includes 8 different shapes of brain teaser rings, offering a variety of challenges in one package. ・Material: Made of durable metals such as steel and zinc alloy, allowing for repeated play. ・Purpose: Helps improve concentration, train the brain, and practice fine motor skills. 【Shipping Information】 This product will be delivered by postal mail. ※Please note that due to being an overseas product, the manufacturing may not be perfect. Please understand that there may be minor scratches or imperfections from the beginning. Please also be aware that the color of the product may differ slightly depending on your monitor environment. If you have any questions, please feel free to comment.