Discharge of oil prohibited sticker are 8x5 inches, it is waterproof and especially treated against UV,can last for a along time. Hazard Waste Sticker uses high quality inks and colors to ensure that our signs are visible inside and outside even in poor lighting and extreme weather- Use indoor or outdoors. Safety Warning Caution Notice Sign Label are eye catching and the size are perfect. Adhesive Color Coding sticker label are easy to peel and stick,and can stay for a long time. QUALITY CUSTOMER SERVICE: Any question about products or orders, please feel free to contact the customer service, we will try our best to solve the problem.