Find the strength your papers need to carry on with Avery Reinforcement Clear Ring 500 Labels 13mm Dia. These labels are designed to strengthen and repair punched holes. The labels come packaged in a handy dispenser that peels each self-adhesive reinforcement off the roll one by one. Apply the reinforcements to your standard-size punched holes to provide a durable border that resists tearing. Your punched holes will be stronger for the experience.