Mag-Lok clasps are the best of their kind. Made with a patented process that uses no glue (the reason so many magnetic clasps fail) these clasp will last a lifetime. Rare earth magnets are punch in to the Mag-Lok 6 and Mag-Lok 8 casings for a perfect fit and grip. They are then plated with a triple step process that ensure a tarnish-free surface. Mag-Lok 11 utilizes a rubber ring and the rare earth magnet is punched into it to create an incredibly tight fit with no concern about the magnet popping out. Made in the USA.