OutdoorMaster Youth & Kids Bike Helmet - Adjustable Multi-Sports Skateboard Helmet with Removable Liners for Balance Bike, Toddler Scooter, One Wheel Hoverboard Pink Small: 46-52cm

Durable: Built for both comfort and impact resistance with Reinforced ABS Shell and Thickened Shock-absorbing EPS Core
Extra Removable Lining: Skateboard helmet with two removable liner for different head sizes and easy to wash the sweat away
A Helmet for Multi-Sport: Smooth Ventilation System helps to protect and enjoy Skating, Cycling, BMX, MTB and etc. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older
Double Adjustment: Well-attached & long-lasting adjustment dial and skin-friendly adjustable chin strap maximize the best fit and comfortable wearing
How To Measure A Proper Helmet: To find the right size bike helmet, start by measuring your head circumference, wrap a flexible tape measure around the largest portion of your head about one inch above your eyebrows. Or, wrap a string around your head, then measure the length of string with a yardstick. Size Large is recommended if your size is between 22.04-23.62 inch (56 cm-60 cm). Recommended Age Grade for this helmet: 5 years and older