... :carbon steel ,SS 2:surface :chrome plated 3:Future:Knock-down 4:Low price ,best quality 4 ... all sizes are available for your confirmation 4. 3" wheels,2 brake, 2 non-brake 5. Load ... material and good surface treatment, easy to assemble, no tools 3) : Durable stylish, flexible light 4) : Four-inch ... two are no-brake 5) : The trolley with wheels at bottom, easily move to everywhere, saving much space ...