Thank you for viewing! This is a "Baby Head Guard" to protect your baby's safety. It's specifically designed to protect the head during falls, providing 360-degree protection. Made with soft, lightweight materials, it won't burden your baby even with prolonged wear. The cute design is appealing and perfect for your child's outfit. Product Information Color: Pink Material: Made of cotton/polyester fiber, gentle on baby's skin. Target Age: Suitable for babies aged 5-24 months. Size: Diameter 18cm x Height 12cm, Hat circumference 70cm, Thickness 2.5cm, providing a secure fit. Weight: Lightweight at 76g, allowing your baby to use it comfortably. Please note that there may be a 1-3cm error due to manual measurement, which is a normal phenomenon. Notes: Please be aware that, as this is an overseas product, the stitching may be less precise compared to Japanese products. Please understand this point before purchasing. With this baby head guard, let's watch over your baby's adventures with peace of mind! It's also perfect as a baby shower gift.