The Greenfield Marine Retrieval Magnet 200 lb Rating PVC Coated Red makes it easier for you to recover dropped items. Designed for use in an underwater environment it attracts objects even if you can t see them. The product s red PVC coating provides a comfortable grip and prevents corrosion. Use this sea searcher magnet when you need to find all sorts of lost or dropped items such as tools or larger objects underwater. Besides marine applications you can also use this object in your shop or other spaces. It attracts cobalt iron nickel and other ferrous metals and their alloys.