shop storage rack with flat free casters

{"cid":"91198564","title":"Storage Rack: 200LB Load, Holds 4 Dollies, Flat-Free Casters for Shop\/4S\/Logistics","imgUrl":"https:\/\/img.chinax.com\/nimg\/04\/56\/4fad404c05709a60adf296efe8d9-200x200-1.jpg","attrs":{"Brand Name":"YEEDA","Model Number":"YD10-011","Minimum Order Quantity":"50pcs","Delivery Time":"30-45DAYS","Certification":"CE","Place of Origin":"Zhejiang\uff0cChina","Payment Terms":"T\/T","Supply Ability":"500PCS\/MONTH","Packaging Details":"Carton Box or Crate","Product Name":"YD10-011 200LB Go Jack Storage Rack","Load Rating":"200LB (approx. 91 kg, Load Rating: 200Ib(91kg))","Compatible Dolly Tire Diameter":"15\"-28\" (approx. 38-71 cm, Tire Diameter Capacity: 15\"-28\"(38cm-71cm))","Caster Specification (Casters Diameter)":"4\" in diameter (approx. 10.2 cm, Casters Diameter: 4\u201d(10.2cm)), made of flat-free polymer material","Dimension Parameters":"Stowed Dimensions: 21\"\u00d724\" (approx. 53\u00d761 cm) Assembled Dimensions: 19\"\u00d731\"\u00d79\" (approx. 48\u00d778\u00d723 cm)","Main Material":"Heavy-duty steel (3.5mm thick, surface electrostatic spray anti-rust treatment, no rust in 130-hour salt spray test)"}}