♥【Soft 7- Vents Design】Cycling helmets allow him to enjoy riding better. Suitable for a head circumference of about 48-55cm and also comes with 7- vents. This design keeps users cool during long rides ♥【Easy-Adjust Knob】The size of the head circumference can be adjusted so that we can wear it easily. Adjustable knobs give the Bike Helmets a better fit and improve safety, which makes for a more comfortable fit for us. ♥【Practical Inner Design】Bike helmets for kids use an inner lining design, which is cool and breathable. So we won't feel stuffy when we wear it, and it's also convenient for our daily cleaning. ♥【Best Tools For Cycling 】Kids cycling helmets can help us stay safe while yet maximizing our enjoyment of the sport. Sunlight can be effectively blocked by its removable brim. ♥【Not Easy To Deform】Helmets Kids bike PC shell + EPS -resistant foam is very breathable and sweat-absorbent, soft, and skin-friendly. The soft sponge pad inside the helmets provides us with a new wearing experience.