Wet floor sign alerts workers and visitors to potentially hazardous, slippery conditions. Made of .004 mil corrugated polyethylene this wet floor sign is economical and folds for convenient storage. Use for indoor or outdoor use. Wet floor sign dimensions 20" x 12", reversible sides, Caution Wet Floor or side 2 says Caution Slippery When Wet. Yellow colored sign with black lettering and symbols.