This bike bundle from RoyalBaby includes a 12-inch bike with training wheels for beginner riders ages 3-4 years and a 20-inch bike for more experienced riders ages 6-10 years. Both feature RoyalBaby's patented components and quality designs. The 12-inch bike has training wheels, a water bottle holder, adjustable seat and handlebars, steel frame, 2.4 inch wide tires, and sealed bearings for smooth pedaling. It comes 95% pre-assembled for easy 15-minute assembly. Safety features include efficient brakes, sturdy frame and tires, and safe grips. The 20-inch bike has front and rear brakes, wide 2.4 inch pneumatic tires, steel frame, non-slip pedals, a chain guard and RoyalBaby's sealed bearings. It is easy to assemble, safer to ride, and designed for easier riding with an exclusive brake lever. With creative colors and sporty styling inspired by BMX bikes, these RoyalBaby bikes allow kids to have fun and adventure. The smaller bike helps beginners gain balance and learn to pedal, while the larger bike is ready for experienced young riders. Together this bundle spans ages 3-10 years with safer features as kids progress in cycling skills.