http://www.trueshinediamondtools.com/backing-pad/backer-pads/ Product Introduction TRUE SHINE aluminum backing pad is perfect for flat surfaces,floor and straight edges with a minor change in shape,super solid,perfectly flat,premium hook and loop. Product Parameter(Specification) ItemDia.ThickThreadRemark JXFJ40463inch 4 inch 5 inch 6inch 7inch / M14 or5/8-11 Aluminium backer Product Feature And Application 1) High-quality pure aluminum back up pads 2)Premium hook and loop ,with a good viscous glue that holds the velcro firmly. 3)eliminates the uneven finish when polishing 4)For connecting with the polishing pads,sandpaper and felt wheels 5)Aluminum body provide longer working life and can bear heavy duty working as steel body but lighter weight 6) Maximum speed: 4000 RPM Production Details TRUE SHINE aluminum backing pad is with great quality and super solid,heavy duty aluminium body will not flex under pressure,perfect for flat polishing. TRUE SHINE aluminum backing pad is with premium grade hook and loop for non-slip stronger bond. TRUE SHINE aluminum backing pad is durable than rubber or plastic backer,arbor with M14 or 5/8-11 thread and center water hole,wet polishing or dry use. TRUE SHINE aluminum backing pad is used on angle polisher ,connect the polishing pads to the hand polisher or grinder. Deliver,Shipping And Serving 1锛塖mall order or samples order,we usually ship them by express ,such as TNT,FedEx,DHL,EMS ,UPS etc.it needs about 3-5 days to your city. 2锛塨ig order(usually Gross weight is more than 45kgs ),we usually deliver by air shipping or sea shipping through your forward agent, if you don鈥檛 have forwarder in China,we will deliver by our forwarder,usually 5-7 days by air ,and 15-45 days by ship FAQ 1) what kinds of backer up pads do you have锛?/strong> We have extra flex rubber pads,flex rubber pads,rigid platic backing up pads and aluminum backers. 2)Do you have aluminum backing pad with 4 water holes? Yes,we have,with one center hole for water flow or 4 holes for water flow or without water holes. 3锛?/strong>May I know what鈥檚 the nearest airport from your company?in case I visit your company. First DONGYING YONGAN Airport,,then JINAN YAOQIANG airport,welcome to visit us.China Backer Pads factory website:http://www.trueshinediamondtools.com/backing-pad/backer-pads/