Unique Design: Steel frame, safe and stable training wheel. Front caliper brake and rear coaster brake. Adjustable bicycle handlebar and seat are suitable for children of different heights. Safety grips, soft seat, sturdy frame, enclosed chainguard, crank, brakes, nonslip resin pedal. 1.2 mm bike steel tubes thickness and 2.4'' wide tires. Accessories: This kid's bike comes with a bell, a DIY decal, training wheels for 12/14/16/18 inches, kickstand for 16/18 inches, and bike front white reflector/rear red reflector. The handlebars and seat height are all adjustable. Use our easy-to-follow size chart, you'll find a perfect size. Note: Please take the kid's height into consideration.