Description [Best Coated]: Ni+Cu+Ni Triple Layer Coated. The Best Coating Available, which Provides a Shiny and Rust Resistant Coated steel cup provides protection for the magnet and helps to prevent chipping or cracking. [Multi-Use]: Unique design with Countersunk Hole and Eyebolt Great for salvaged of various iron-containning nickel material underwater and Good idea for magnet fishing, lifting, hanging, retrieving applications. Have fun to searching items like eyebolt, screws, hooks, fasteners and so on in your warehouse garage or yard. [Powerful Neodymium Magnet]: On the 10mm steel plate, we measured the vertical pull of the magnet is 837LBS(380KG). The powerful magnetic force is only concentrated at the bottom, The other three sides are Protected by steel cups that almost no magnetic force. [High Quality]: Made under ISO 9001 Quality Systems. 60 Days Money Back Guaranteed! magnetic force equivalent to 10 times the volume of the same magnet. force pe…