CMS Magnetics - Magnets for Office, Refrigerator, Craft Board, Magnetic Dry Erase Whiteboard, Bulletin, Calendar, Paper Holder, Hooks, Knobs, Clips, Push Pins, Dominos, Key Ring (Ceramic or Neodymium) Styles: Ceramic Balloon Hooks Ceramic Hooks X-Small (32mm diameter) Ceramic Hooks Small (40mm diameter) Ceramic Hooks Medium (47mm diamater) Ceramic Hooks Large (52mm diameter) Ceramic Hooks X-Large(57mm diamater) Neodymium Hooks Small (25mm diamater) Neodymium Hooks Medium (40mm diamater)