Strong Magnet 16mm/20mm/25mm/32mm/36mm Round Neodymium with Countersunk Hole and Eyebolt Product Description: Material:NdFeB magnet + A3 steel + 304 stainless steel ​Features: 1. Strong magnetic force and small size. 2. The powerful magnetic force is concentrated on one side, and the magnet is not easy to be broken. 3. Can be freely held or moved on the surface of the ferrous metal. 4. The magnetic force is permanent and the service life is long. 5. This can be used for Household or industrial, indoor and outdoor. It works ceiling hooks for small plant, hand tools or gadgets, and it can be used for fun. it is a good idea for fishing, lifting, hanging, retrieving applications. Have fun to searching items like eye bolt, screws, coins, fasteners and so on in your warehouse garage or yard. Package Include: 1 x Magnet