Ceramic 8 Hard Ferrite Magnet - 3.025" Diameter x 0.350 Thick, 2-Pack. This strong magnet can be used for a multitude of purposes: crafts, industrial, holding, magnetic assemblies, only limited by your imagination. All magnets are fragile so don't let these two magnets snap together. Each magnet has ~12-lbs pull strength. Please keep in mind, this material is very brittle and will most likely have small chips...all hard ferrite magnets are this way.