【 Kids Bike Helmet & 7 in 1 Protective Gear Set】Package including: 1*helmet, 2*Wrist Pads, 2*Knee Pads, 2*Elbow Pads. This toddler bike helmet and wrist guard, elbow pad, and knee pad set create a safe outdoor play experience for children 【Dual Certificate】Kids bike helmet and pads set Complies with U.S. Consumer Product Safety Commission Safety Standard for Bicycle Helmets. Kids helmet and pads set Meets U.S. Standards of CPSC 1203, ASTM F1447 and CPSIA 【Adjustable Toddler Helmet Suits Your Kids 】】Toddler helmet and knee pads recommended for toddler /little kid of head circumference: 51-54 cm / 20.1-21.2"(size S). Head circumference range for size M: 55-58 cm / 21.7"-22.8". This kids bike helmet is easily adjustable for a snug fit, and adjustable with your child’s growing for years. Wrist elbow knee pads is also adjustable 【Quality Protective】Knee pads and elbow pads set are made of strong ABS shell and shock-absorbing EVA material, which is durable. It is safe, breathable and washable. Eleven top and side vents reduce sweating and keep you cool 【Warranty】We are confident with the quality our product, yet we provide you a warranty of one year limited warranty, and quick e-mail response within 48hrs