Small Ceramic Magnets 5/8 inch from Darice. These mini round ceramic magnets are 5/8 or 0.625 inch in diameter and 1/8 inches in thickness. 10 Pieces of circle magnets per package . These magnets are super strong which makes them perfect for all your arts and crafts projects. These craft magnets can easily be glued to the back of pictures, wood, or other light weight things to hang on a metal surface! Warning: Small parts- Children Should have supervision when handling small magnets!