Mesa Label Express 2" Clear Circle - Clear Round Seal Labels (500 per Roll) Manufactured and Sold exclusively by Mesa Label Express. Premium Clear Film (Polystyrene) with an Aggressive Permanent Adhesive designed to stick on your packages. Each Roll contains 500 2" Clear Circle - Clear Round Seal labels. Labels are 100% Gauranteed. Many vendors try to duplicate our success, but ONLY Mesa Label Express produces and sells this exact item.