approximately 3.44 long at its longest measurement. BOGO FREE ALL STICKERS, USE CODE BOGOFREESALE Our custom magnets are 15 mils (381 microns) thick. With laminate & coating, the total thickness is 19 mils (482 microns). We use the highest quality magnetic material for our products! - High Quality - Water Resistant Durable - 2-3 Year Outdoor Life - Scratch Resistant - Includes 1 Magnet Approximate magnet size is determined by the longest side of the design. Please apply the stickers to clean, smooth & dry surfaces. WildOakStickers provides quality stickers & magnets made with the highest quality inks. If you have any questions or custom requests, please send a message through Etsy chat. New Chill I Got A Spreadsheet For That Magnet, Math Puns Locker Sarcastic Refrigerator Magnet