7 inch 400 grit circular sanding discs

{"cid":"91108167","title":"Wet Dry Diamond Concrete Floor Buffer Concrete Sanding Pads","imgUrl":"https:\/\/img.chinax.com\/nimg\/78\/69\/7e553984420fde68bb19665b58d3-200x200-1.jpg","attrs":{"Price":"USD5-10","Brand Name":"Merrock","Model Number":"Merrock","Minimum Order Quantity":"1pc","Delivery Time":"5-7 work days, OEM 20-25 work days","Certification":"ISO9001,CE,MSDS,etc","Place of Origin":"Made in China","Payment Terms":"TT , West Union","Supply Ability":"20000pcs \/ Month","Packaging Details":"10pcs in inner box","Name":"Resin diamond pads","Size":"4\"","Material":"diamond, resin, etc","Usage":"stone \/ concrete\/ terrazzo grinding and polishing","Grits":"from 50# to 3000#","Brand":"Merrock \/ Dangshing \/ Apollo","Item NO.":"F26"}}