• Circle Hole Magnets Great for all Home, Office, Craft, Hobby, Science Projects and Product Manufacturing applications. • Perfect for glass gems, mirrors, for making refrigerator magnets, bottle cap magnets, small signs, magnetic buttons, and much more. Also our craft magnets are used as kitchen magnets, office magnets, science magnets, classroom magnets, fridge magnets, refrigerator magnets, DIY magnets and hobby magnets.