1. Material: These keycaps are made of high quality PVC material, with good elasticity and strong toughness, crack-resistant, lightweight and durable; They can help you identify your keys quickly, save time and labor, and protect your keys from dirt 2. Size: The diameter of each key cover is about 24mm, the thickness is about 4.8mm, can be adapted to the standard keys, easy to carry out 3 .Pack size: The pack contains colored key identification rings. Different colors can correspond to different room keys. Don't worry about swapping the keys again 4. Assorted Color: These key tags come in a variety of colors, you can organize your keys by different colors for easier identification, and quickly find the keys you need when you open the door 5. Application: The key identification tags are used to separate similar keys by color. They can be a decorative addition to your keys, but also a nice gift for your family or friends