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Type : PermanentWith Holes : NoComposite : Neodymium MagnetCertification : NONENotice:This product has strong magnetic properties and is not suitable for children to play; please keep this product out of the reach of children to prevent children from swallowing it by mistake. If accidentally swallowed, seek medical attention immediately!1.The strong magnet is made of sintered magnetic boron material, it is hard and fragile, it is a fragile product; please handle with care when using it.2. Strong magnetism should be kept away from easily magnetized items, such as bank cards, watches, pacemakers and other electronic products.3. Store the product in a dry, constant temperature environment when not in use.Free storage box, free gift box does not enjoy after-sales;