Material: Aluminum(T-bar)+PP+Nylon+PVCRear Wheel: 9.0x4.6cm PU with ligthFront wheel: 11.7*2.7cm PU with ligthMax load: 30KGWeight: 2.0KGSSize: 58*22(62-79)cmLoading QTY: 20GP/40HQ: 1657/4024pcs