Specification :

"Materail:Aluminum,Plastics,Spring,Rubber
Max hight:4 feet high
Max speed:10km/h or 6.5miles/h
Standard Models Available:
Models Available:
F30-For user from (30~39KG,66~86LBS)
F40-For user from(40~49KG,87~108LBS)
F50-For user from(50~59KG,109~131LBS)
F60-For user from(60~70KG,132~154LBS)
User's age: 8-20 years old"