Magnet Source 24" sweeper magnet for collecting dangerous scrap metal or collecting scattered metal items, our MFSM models are an excellent value. These sweepers are incredibly strong, well-built, and an excellent value. Powerful Ceramic magnets are encased in a durable aluminum housing which can be cleared of collected debris with work gloves or heavy shop towel. Easy to operate over most terrain - even in water! Permanent magnetism guaranteed.