... duty castors Easy assembling, Perfect quality, Speical desig Double T Stand Frame Rack, With Double Side Standard, with heavy duty castorsGerenal Size: 52 ... frame is made of dia. 2" (50mm) round tube, with double slotted;2.) Connecting tube is make of 1"x2" oval ... ,2.) Paking Material: PE bag + form + five layer mater carton, Double T Stand Frame Rack With Double Side Standard, with heavy duty casters