The Avery L4775REV-20 labels are perfect for temporary marking and signaling. The durable labels are made of polyester and are ideal for outdoor use. The material is weather-resistant and waterproof. This means that the labels are not affected by UV radiation and temperature changes between -20 and +80°C. The adhesive provides a strong bond, but is easily removable and leaves no residue. The white labels can be printed with a laser printer. The package contains 20 A4 size labels.