1) Dimension: 20/ 24/ 28" 2) Material: ABS 3) Drawbar: aluminum inside, iron outside 4) Wheel: four 360 rolling wheels PC TROLLEY ZIPPER FRAME LUGGAGESpecifications1) Dimension: 20/24/28"2) Material: ABS (azo free, low cadmium and phthalate free)3) Colour: beige4) Drawbar: iron outside, aluminum inside5) Handle: PVC main part, zinc alloy setting, one on the top, one on the lateral side(24/28")6) ...