Nylon low gravity center casters

{"cid":"71687","pid":"17398859","pimg_url":"\/\/img1.b2bforus.com\/07\/7b\/f6c078d6da7c\/product\/52275112_s-w400xh400.jpg","name":"3 Inch Rigid Heavy Duty Plate Rigid Low Weight Center Casters","attrs":{"Price":"$7.38(1 - 50 Pieces) $6.24(51 - 100 Pieces) $5.96(101 - 1000 Pieces) $5.42(>=1001 Pieces)","MOQ":"1 Piece","Delivery Time":"Negotiable"}}

{"cid":"71687","pid":"17398843","pimg_url":"\/\/img1.b2bforus.com\/07\/7b\/f6c078d6da7c\/product\/52275036_s-w400xh400.jpg","name":"PIVOT Plate Swivel Heavy Duty Low Unit Weight Center Casters","attrs":{"Price":"$8.38(1 - 50 Pieces) $7.09(51 - 100 Pieces) $6.78(101 - 1000 Pieces) $6.17(>=1001 Pieces)","MOQ":"1 Piece","Delivery Time":"Negotiable"}}

{"cid":"71687","pid":"17398830","pimg_url":"\/\/img1.b2bforus.com\/07\/7b\/f6c078d6da7c\/product\/52274947_s-w400xh400.jpg","name":"Heavy Duty Lockable Low Weight Center PIVOT Casters","attrs":{"Price":"$5.32(1 - 50 Pieces) $4.49(51 - 100 Pieces) $4.28(101 - 1000 Pieces) $4.08(>=1001 Pieces)","MOQ":"1 Piece","Delivery Time":"Negotiable"}}