Key Features Strong and Durable: This product is made of high-class material with excellent impact resistance, corrosion resistance, and rust resistance, making it a long-lasting companion for kids. Safe and Reliable: Wider 14'' tires and two training wheels can form a stable triangular structure, which helps children who are new to riding to maintain balance, prevent falls, and enhance riding confidence and safety. As children's skills improve, these auxiliary training wheels can be easily disassembled. Adjustable Design: The seat height can be adjusted between 16.9-19.3 inches, and the armrest height can be adjusted between 25.9-28.7 inches, so you can adjust them to the most suitable height as your child grows, promoting the formation of a correct riding posture. Application This product is suitable for children's riding, lessons, recreation, or exercise. Specification Assembly Required: Yes Style: Modern Color: White/Blue/Red/Yellow Bike Type: ‎Kids Bike Skill Level: Beginner Power Source: ‎Manual Overall Length: 100cm/39in Armrest Height: 66-73cm/25.9-28.7in Seat Height: 43-49cm/16.9-19.3in Wheel Diameter: 35.6cm/14in Package Size: 82*47*19cm/32.28*18.5*7.48in Gross Weight: 9kg/19.84lbs Net Weight: 8.55kg/18.85lbs Package Included 1* Children's Bicycle 2* Auxiliary Wheels 1* English Installation Instruction Other Mounting Accessories Notes  1. Please check the style and size before purchasing. 2. Protective equipment shall be worn during use, and please do not use it on public transportation roads.