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These impressive block magnets are encased in a durable black plastic coating, making them not only waterproof but also extremely impact-resistant. Unlike standard magnets, they can be repeatedly slammed together without chipping or cracking — built to withstand tough conditions.
Designed with countersunk holes on both sides, they’re incredibly versatile and easy to mount. Ideal for aquariums, marine environments, construction sites, outdoor projects, and more — wherever strength and durability are essential.
Super strong. Super tough. Built to last.










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