Home / Magnets & Bumper Magnets / Birth Nerd on Board Magnet Bumper Sticker Sold out! Birth Nerd on Board Magnet Bumper Sticker$15.00 5″ x 5″ Bumper Magnet .: Heavy Duty Sticker .: Waterproof & Dishwasher Safe .: For indoor and outdoor use Sold out! SKU: 8578725339 Category: Magnets & Bumper Magnets