Brady 43518 10" Height, 14" Width, B-555 Aluminum, Black And Red On White Color Confined Space Sign, Legend "Danger, Permit-Required Confined Space Do Not Enter" Brady offers over 8,000 signs to meet the needs of your safety and facility identification Brady's safety signs use internationally reported pictograms and help promote greater communication of safety messages Brady B-555 aluminum safety sign is an aluminum sign panel with protected graphics designed for use in industrial, utility, commercial, and institutional environments Panels are round-cornered and punched for application to rigid surfaces The sign construction is recommended for both indoor and outdoor use