Compatibility - Large length: 13.8mm width: 13.0mm height: 7.9mm Medium length: 12.7mm width: 11.8mm height: 7.9mm Trumpet length: 11.9mm width: 11.1mm height: 7.9mm Comfortable - The soft and comfortable Memory Foam material will not bring pressure on the ear canal. Different sizes are suitable for family members with different ear canal sizes. Easy to Install: The perfect design can be easily installed on your AirPods Pro. When you want to remove the old headphones and install the new ones, it only takes a few seconds. The memory foam part and the buckle part are detachable, which makes the installation more convenient. Coming with Storage Box: The storage box included in the package can be used to fix and store the replacement earbuds separately, which can not only keep them clean but also prevent damage to the earbuds. Can be put in Charging Case: Three different sizes can be placed directly into the charging compartment. Does not affect charging and infrared somatosensory.