This is a swim cap for Central Sports Kids. Size: L (54-59cm) Color: Light blue, required for Level 3 and above The swim caps come in two sizes, and my child used the L size in the third grade of elementary school. Retail price: 1870 yen Usage period: 1 month (intended to graduate with butterfly stroke) * The rubber material is strong and tends to attract dust. I will be careful when packing, but please be aware of this. No name written on it. Thank you.