【Safe Brake System & Training Wheels】The HONEY JOY kids bike features a hand brake with a shorter distance for small hands and a rear coaster brake allowing for easily stopping when the pedal backwards. And the enclosed chain guard effectively prevents your kids from touching the chain, ensuring safety. Moreover, there exist 2 removable training wheels, providing stability and support for beginners. 【Stable & Sturdy Structure】The toddler bike is equipped with wear-resistant 14”/16”/18” pneumatic tires that consist of 5 layers, ensuring good skid resistance, shock absorption, and smooth riding. Besides, the kids bicycle is constructed of a durable carbon steel frame, ensuring good strength and longevity. 【Adjustable Design & Easy Assembly】The bike with training wheels is equipped with a height-adjustable handlebar and seat, which can accompany your kids to grow up. In addition, in contrast to other 85% pre-assembled bikes, our bike for kids adopt 85% pre-assembled bike for hassle-free installation. 【Humanized Design】The kids bicycle comes with a convenient bell for added fun and safety, and there exists a removable front basket, bringing convenience for carrying belongings. Besides, comes with a stain-resistant PP seat and non-slip pedals, the kids bike provides a comfy riding experience. Other than that, the 16” and 18” bikes come with 3 different reflectors to enhance visibility during low-light conditions, and the 18” bike comes with a kick stand for easy parking. 【Tips of Choosing the Right Size】The kids bike comes in 3 wheel sizes (14”/16”/18”), catering to children aged 3-5/4-7/4-8 years old. Besides, the recommended rider height is 37.5”-43.5”/41.5”-51”/47”-59” and kid’s inseam is 16”-18”/18”-22”/20”-24”. Please measure the kid’s INSEAM and compare it with the SADDLE HEIGHT, and consider the RIDER HEIGHT more than age.