-Our bike - 95% pre-assembled design better than other bikes - 85% pre-assembled -Equipped with a hand brake and rear coaster brake to easily stop the bike-2 removable training wheels turn the bike into a triangular structure for high stability-30"-31.5"/33"-34.5" adjustable handlebar and 23"-25.5"/25"-27.5" adjustable seat for kids of different heights-Locking devices to fix the seat height-Front basket to store kid's belongings -The solid carbon steel frame for long-term use-Anti-puncture and