The Brady Number Label is a 2.5" x 1" label with 2.5" tall characters for easy visibility. It is made of vinyl material that is durable, weather/chemical resistant, and suitable for indoor or outdoor use. This label comes in white color and allows permanent marking with a wide range of industrial markers. It can be used for pipe marking, valve tagging, equipment ID, tool identification, and general signage needs. With high adhesion acrylic adhesive, it adheres well to most surfaces. The labels are sold in a pack of 250.