The Grainger Reflective Numbers and Letters 9-Pack is a set of 9 reflective adhesive numbers and letters that can be used for labeling and identification purposes. The set includes the numbers 0-9 in a black color and a height of 1". The numbers are made of a reflective vinyl material that is weather and UV resistant. They can adhere to smooth, flat surfaces like metal, plastic, glass, and painted wood. Their high visibility makes them ideal for labeling equipment, tools, storage bins, and more in low light conditions. With strong adhesive backing, they are designed for indoor and outdoor use.