1 Inch Standard Caps: 1 inch in diameter. Extendable to match 0.9-1 inch thin and flat key heads ONLY. Not fit for car, motorcycle or boat ignition keys and thick keys!Great Identifiers: Separate and organize your similar keys by colors to identify them faster. Extremely time-saving for those who are tired of differentiating multiple keys.Flexible and Soft: Made of rubber-like vinyl which resists tearing and color fading. Pliable material makes it extend easily to fit your keys without cracking.Easy & Quick to Fit: Extremely easy to put it on or take it off from your key. It tightly wraps your key head without slipping off. Ideal for preventing dirt and bumping.32 Pcs in 8 Colors: Each of the 8 colors contains 4 key caps. Help quickly distinguish various keys that tend to be mixed up. Ideal for home and office use!