NOTE:****** Adult Helmet ONLY INCLUDE 1 * Helmet not any accessary pls see the product picture. ****** Style A-E: Helmet size (length 30cm width 19cm depth 8-10cm) Head circumference (54cm) is not adjustable; Style F-K: Helmet size (length 26cm width 20cm depth 8-12cm) Head circumference (56cm) is not adjustable Perfect suitable for 3-15 years old kids; Adult Helmet Size: Head circumference 65cm head wide diameter 18cm Manufacturered by Suesung. High-density padding for comfort and cooling highly shockproof prevent kid from getting injured. High hardness PVC shell thickened soft sponge comfortable and durable. Kids Safety Helmet & Knee & Elbow Pad Set For Cycling Skate Protection with high quality and durable performance. 7Pcs Kid Child Boy And Girl Bicycle Roller Outdoor Sports Helmet Ice Skates Balance Car Protective Gear Knee Elbow Pads Palm Guards Wrist Dirt Bike Helmets Kids Set Appropriate for inline skating /skateboard /riding bikes/ scooters roller blading/ riding a scooter and other extreme sports NOTE:****** Kids 7Pcs protective set including 1 * Helmet;2 * Knee Pads;2 * Elbow Pads;2 * Wrist Guards******