Funny Warning Signs - No Stupid People - Man Cave, Garage, Work Shop Item: Funny Warning Sign Size: 10" x 6" Rectangular Sign Material: Thin Flexible Vinyl Plastic Pre-Drilled Holes For Easy Hanging Sign design and image Copyright  2015 and Trademarked by Crazy Sticker Guy&#8482;. All rights reserved. W3X Commerce is the only authorized retailer of this sign. If you purchase this sign from any other seller it is an illegal copy of this sign.