This is a set of 3 swimming silicone caps. The stretchy silicone material fits the head and prevents hair from getting wet, reducing hair damage from pool water. They are a slightly loose size, so they fit comfortably and are easy to wear, even for long hair. Sizes: (Light Blue/White) Length 21.0cm x Width 24.5cm (Black) Length 19.5cm x Width 24.0cm Material: Silicone The black cap has a design printed on one side only. All three caps have been used a few times and stored at home, so I would appreciate it if you could understand this before purchasing.