Shop for the San Francisco 49ers 12in Car Magnet from lids.com and support the San Francisco 49ers & NFL in style withlids.com Novelties! Start a scene when you stick your team's emblem on your ride with this full-color 12-inch Car Magnet by Freemont Die. The heavy-duty, die-cut magnet is safe for all metal surfaces and even flexes to fit curves.