This 16-inch kids bicycle is designed to grow with young riders, making it perfect for boys and girls aged 4-7 years old. Both the handlebar and seat are height adjustable, ensuring a customized fit as children grow taller. With a dual brake system—front hand brake for easy grip and coaster brake for backward pedaling stops—kids can ride with confidence and safety. The solid rubber wheels are shock-absorbing and crack-resistant, delivering a smooth and steady ride across various surfaces. For beginners, detachable training wheels provide balance support, while the enclosed chain guard prevents accidental pinching. Reflectors on the front and rear enhance visibility in low-light conditions, and the sturdy metal frame withstands everyday bumps and falls for long-lasting use. With 95% pre-assembly, installation is quick and hassle-free, so kids can hop on and start their biking adventures right away.