This is a shampoo hat with ear guards to prevent water and shampoo from getting into the eyes and ears. It has a large brim to prevent water from getting on the face. It has ear guards to prevent water from entering the ears. It is made of lightweight and soft EVA resin material, so it doesn't hurt when worn on the head. The size can be adjusted with 4-stage snap buttons! Adjustable range: Approximately 430-520mm (Suitable for 6 months to 6 years old) 【Product Size (approx.)】 Size: 315 x 280 x 17mm Adjustment range: Approximately 430-520mm 【Quality Indication】 Body: EVA resin / Heat resistance 60 degrees Celsius Snap button: Polyester / Heat resistance 60 degrees Celsius *Please be careful as it may tear if pulled strongly. ● Made in China I purchased this around October 2025, but my child refused to use the shampoo hat, so I only used it once and have been storing it at home. Please feel free to ask any questions!