Medium sized 20mm (0.79") diameter disc magnets are available in many forms. Within our range you will find strong neodymium disc magnets, great value ceramic magnets and self-adhesive flexible magnets. Each has many creative uses including, arts, crafts, model making, packaging, stationery and displays. Neodymium magnets are the strongest type of magnets available and are also widely used in technology, engineering and manufacturing.