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【Lifetime Customer Service】If any problem any question or suggestions at any time about this small kids protective gear set , please feel free to email us seller via Amazon message, we will provide you good solutions ASAP, thank you so much for your choosing.
【Adjustable Size】 Small size is suitable for 3~10 years old kids boys girls, 15kg-40kg for using adjustable elastic straps. This head circumference of the small kids helmet also can be adjusted 18.89inch to 21.26inch. It’s the key to make you comfortable while sports.

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【Professional Protection】USE— PLEASE CHECK SELLER FEEDBACK BEFORE PURCHASE. Make sure you are buying from Besungo Products for AUTHENTIC. The dust mask is made of high-quality mesh fabric, lightweight, soft, skin-friendly, breathable, comfortable. When the nylon mesh and valve become dirty, you can use clean water and a small amount of alcohol to soak for 5 minutes and then clean them.
【Five Layers Protection】The replaceable filter has a 5 layer structure, and the inner meltblown cloth is the main factor to protect your health. The sports mask is specially designed for harsh environment. It can effectively resist more than 95% harmful substances and protect your face from dust, pollution, ash, pollen, allergy, haze and smoke

MULTI-SPORTING GEAR: These Kids / Child Bike Helmets are flexible and suitable for Multi-sports activities, include cycling, skateboarding, scootering, inline & roller skating. These helmets would be the essential protective gear for any outdoor sports-lovers.
Size Measurements( Please check second Image for clear explaination) : Small: 18.1’’-19.7, Medium: 19.7’’-22.8”, Large: 20.9’’-23.2”., These Cycling helmets come with an adjustable strap which make it flexible to fit the size of Adult. The flexibility of the strap make it a unisex product and would fit both well for both boys and girls.
IMPACT Resistance:These bike helmets are specially designed for Kids / Child Multi-sports Head protection. The material use is tough and durable PVC & PC, EPS foam which would help absorb the impact and protect the head during impact.

ASTM & CPSC CERTIFIED SAFETY – Built for both comfort and impact resistance with REINFORCED ABS SHELL & 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 Venlitation System and Dual Safety Certifications helps to protect and enjoy SKATING, CYCLING, BMX, MTB and etc.