Applicable People: UnisexRim Material: Magnesium AlloyFork Material: Magnesium AlloyFrame Material: Magnesium AlloyType: Mountain BikeOrigin: Mainland ChinaThe material: Magnesium alloyType: SFE1059load: 75kgThe braking system: Double disc brakecolor: Black, silversize: 20 inchesmodel: Mountain bike Selfree 6-14 Years Old Magnesium Alloy One Wheel Children's Bicycle Disc Brake