Features: Colorful keyrings effectively protect your keys from wear and prevent scratching of other items. Easily put on and remove the key markers as they are stretchy, and the key caps help protect your keys. This key marker is suitable for a variety of applications, such as house keys, office keys, car keys, luggage keys, and more. The key marker is made of silicone, offering flexibility and durability. It is small, lightweight, and waterproof, making it suitable for long-term use. Quick identification: The colored key identifiers are easy to install and remove, featuring an elastic and soft design to better protect the key head. These multiple colored keycaps can be used to classify keys, helping to distinguish between different uses or functions for faster identification. Specifications: Component: Silicone Round Size: Approx. 24x24mm Square Size: Approx. 28x25mm Quantity: 20pcs / 40pcs Package Includes: 1 Set Silicone Key Caps Note: 1. Please allow 1-2cm errors due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences between monitors, the picture may not reflect the actual color. Thank you for your understanding.