Is your business or work space 100% covered and up to code with current signage and labels. Never leave yourself exposed to lawsuits, fines, or reprimands - the integrity of your business and safety of others depends on it. We have signs in all different shapes, sizes, and colors for almost every single business, workplace, manufacturing plant, production facility, or construction zone. Check out all our first aid signs, danger signs, keep door closed signs, electric panel hazard signs, storage signs, authorized personnel signs, lab chemicals signs and thousands more. Our signs are extremely durable yet flexible for even the most intense indoor or outdoor conditions. 's full color products are fabricated right here in the United States. Vinyl decals are equipped with super strong adhesive so that you can easily apply it to glass windows, aluminum, stainless steel, sanded wood, plexiglass and many more materials and sidings. Aluminum & rigid plastic signage materials are the perfect choice for mounting on walls, doors, fences, construction and caution areas. All of our materials surpass industry standards and will provide years of durability and longevity. FeaturesOSHA Notice Sign - Door May Be Locked During Business HoursAluminum SignProtect Your Business, Work Site, Warehouse & Shop AreaMade in the USASpecificationsDesign: Door May Be Locked During Business HoursSize: 7" x 10"Weight: 0.25 lbs