This is a used item that has been used many times. It is listed as 24cm, but it is uncertain if it is actually 24cm. The size is L. It will be shipped in a plastic bag. Please refrain from purchasing if you are looking for a perfect item, as this is a used item and has been stored at home. Please fully understand that this is a used item, and refrain from purchasing if you are concerned about any oversights or minor details.