4 inch gray shock absorbing casters

{"cid":"91198834","title":"5-Inch, 6-Inch, 8-Inch Spring Shock-Absorbing Casters, Shock-Resistant, Wear-Resistant, Durable And Universal","imgUrl":"https:\/\/img.chinax.com\/nimg\/0e\/0c\/ea92cbf8073d77c8c28f3a8301cc-200x200-1.jpg","attrs":{"Brand Name":"Spring shock absorber casters","Model Number":"I011","Place of Origin":"Guangdong, China","Operation Mode":"Foot","Stair Material":"PLASTIC","Plastic Type":"PU And Iron","Wheel Size":"5 Inch 6inch 8inch","Sensitivity":"<-112dBm","Caster Style":"Rigid","Power Source":"Electric","Bearing":"Ball Bearing"}}

{"cid":"91220620","title":"Zinc Plated 5 Inch Fixed Shock Absorption Medium Duty Shock Absorber Caster and Wheel","imgUrl":"https:\/\/img.chinax.com\/nimg\/0b\/89\/8d2d03fd0112eb0ae365960b41d0-200x200-1.jpg","attrs":{"Price":"negotiate","Minimum Order Quantity":"50","Delivery Time":"within 15 workdays","Model NO.":"FH00137","Maximum Load":"350kg","Specification":"4inch\/5inch\/6inch\/8inch, TPR\/ PVC","Diameter":"100mm\/125mm\/150mm\/200mm","Thickness":"50mm","Transport Package":"Carton + Woven Bag","Trademark":"Customizable","Origin":"Hebei, China","HS Code":"8302200000","Supply Ability":"5000 Set Per Month","Type":"Rotating Wheel","Wheel Material":"PU","Brake":"With Brake","Bearing Type":"Roller Bearing","Surface Treatment":"Zinc Plated","Brand":"Koster","Samples":"US$ 10\/Piece 1 Piece(Min.Order) | Request Sample","Customization":"Available | Customized Request","Place of Origin":"Hebei, China","Certification":"ISO 9001","Packaging Details":"Plastic Bag+Carton+Woven Bag","Payment Terms":"LC, T\/T, D\/P, PayPal, Western Union, Small-amount payment"}}

{"cid":"91223179","title":"Medium Duty Zinc Coating Industrial Caster Wheels 4 Inch 110kg Threaded TPE Caster","imgUrl":"https:\/\/img.chinax.com\/nimg\/4a\/04\/c427fe33891d59aa1cfa6e746bd3-200x200-1.jpg","attrs":{"Price":"Negotiate","Brand Name":"EDL","Model Number":"5714S-57","Minimum Order Quantity":"1pcs","Delivery Time":"3-15days","Certification":"ISO9001, ISO14001, RoHS","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"30,000pcs\/day","Packaging Details":"Carton","Wheel Diameter":"4inch(100mm)","Name":"Industrial Caster Wheels","Dynamic Load":"110kg","Core Material":"PP","Tread Material":"TPE","Mounting Type":"Swivel \/ Brake","Mounting Height":"145mm","Frame Material":"Cold-Rolled Plate","Surface Treatment":"Zinc Coating","Standard Threaded":"M12\u00d725","Bracket Thickness":"2.5mm","Bracket Width":"41mm","Wheel width":"31mm","Bearing":"Single ball bearing","Tread Color":"Grey","Applicable Temperature":"-30\u2103\uff5e70\u2103","Tread Hardness":"80A"}}