1. GREAT IDENTIFIER - Each label includes a blank sheet of paper to write on and has a durable clear cover to keep out water and dirt. Easily tag and sort items for quick identification.2. Small and Lightweight: Size: 5.6cmx 2.9cm Use split ring to easily fasten to your items. Perfect to carry around with no extra baggage or bulk.3. Durable and Reusable - Made of heat-resistant and wear-resistant polypropylene, it is durable and not easy to break. Also designed with smooth corners to avoid accidental injury.4. Convenient for writing: without removing the ring, just press to open the cover and take out the writing paper. Then insert the label into the sleeve after the ink is completely dry to avoid smudging.5. 20 pieces in total: The package contains 20 white labels. Excellent coding system for marking keychains, suitcases, USB sticks and more.