1)Frame material: 30%GF PA66; Heat Treatment Aluminum 6061T6 2)Plastic Parts: PA+ Fiberglass 3)Rims:aluminum 4)carton size :31.5*18.5*69CM 5)product size:100cm x 70cm x 43cm 6)N.W.:5.6kg 7)Max loading:90kg 8)tire size:16cm,diameter:3.2cm 9)container loading:700pcs/20fcl,1440pcs/40fcl,1550pcs/40HQ