These 3.5" x 5" adhesive labels are perfect for labeling packages and keeping track of important information. They feature a square-edged rectangle shape and are pressure sensitive and self-adhesive, making them easy to apply. The labels come in a quantity of 300 & 500 and have a 1 inch ID core size. These labels are ideal for Industrial business use in need of servicing labels and tags, specifically in the Plumbing, Electrical, Heating & Air Conditioning and Mechanical industries. The labels are made in the United States and are designed to help keep your packages organized.