Attention, Niners fans. This NFL® San Francisco 49ers™ Fan Cave Sign is a must-have for your fan cave or man cave or rec room - whatever you call it. This sign will make the space where you watch the Niners win even better. Hang it near the TV or in a spot where everyone entering your home will see it and know that they're in Niners territory. Wood. 11" x 17" © NFL Properties LLC.