APS Pro FP75 Low Vibration 75mm 3" Velcro Backing Plate for FLEX PXE80 e.wt.dressing before exposing the car to Size 24 x 36 before exposing the car to the elements (Word of P21S’s now famous surface safety spread rapidly during the eighties as owners of expensive road wheels found out the hard way that not all wheel cleaners were created alike…ask Porsche owners who ruined their 911 5 spoke forged alloys APS Pro FP75 eliminates one of the biggest problems with the original 75mm backing pad its excessively high basic weight The conical shape of the backing pad enables an optimal top view and perfect guidance control in critical border areas