Rather than informing passersby that a construction area exists nearby, use the "Construction Area Keep Out" danger sign to keep them out of the area. Available in four durable materials, this danger sign is highly economical as it would take years to replace it. Since it's resistant to weather, moisture, and corrosive conditions, this safety sign endures on any environment, whether inside or out. Besides materials, this safety sign comes in various sizes so you can choose one that fits your need. This danger sign also has pre-drilled mounting holes and radius corners in aluminum, plastic, and fiberglass materials and an adhesive backing in adhesive vinyl for easy installation. Danger sign Materials: plastic, aluminum, adhesive vinyl, fiberglass Aluminum: corrosion-proof and UV-resistant Plastic: moisture and weather-resistant Fiberglass: resistant to chemicals, weather, mold, mildew, stains Adhesive vinyl: weather, moisture, corrosion-resistant Pre-drilled mounting holes Radius corners Adhesive backing for adhesive vinyl Sizes: 3"x5" - 14"x20"