Features: 1. The helmet shell is made of ABS, which is durable, anti-drop and anti-collision, and can better protect the head. 2. The inner shell is made of EPS high-density black foam with a thickness of 21mm, which has better cushioning effect. 3. The inside is made of high-grade suede absorbent cotton, which is soft and comfortable and absorbs sweat. 4. The plush large inner pad surrounds the edge of the helmet, and the extra crown pad ensures a perfect and comfortable fit. 5. The helmet is a 52-58CM one size helmet, suitable for teenagers and adults, with a helmet strap to adjust the elasticity 6.Multiple vents: This product has breathable ventilation, shock resistant and impact resistance shell. Product Specifications: Colour: Black Material: ABS+EPS Weight: 340g Applicable: scooters, balance cars, bicycles, electric vehicles, climbing and other activities Head circumference: L (52-58CM),there are adjustable buttons on the back of the head Package Included: Helmet * 1