plastic coated waterproof countersunk ring magnet

What magnets do you have at heart when mention waterproof magnets or durable magnets? The waterproof magnets and durable magnets from Meank Magnetics are means neodymium rare earth magnets with other durable and waterproof material coating and sealed. Here is plastic coated waterproof  countersunk ring magnets,the hard plastic coating let the magnets unbreakable and washable. Because made with strong rare earth neodymium magnets, the magnets still have powerful magnetic force even if with about 1 mm thickness distance.