The patented Center Tee System will provide the end user with fast easy pad loading and centering every time. The Center Tee is permanently mounted to the pad and can't get lost like plastic centering tubes. Our Center Tee Contour Foam Pads have quality hook & loop material with a straight down recessed cup for extra protection. We have a wide range of durable open cell foams and the contoured edge conveniently fits automotive style lines for easy buffing. Diameter: 9" Mounting: Grip Pad Material Type: Reticulated Polyester Foam Foam PPI: 80 Thickness: 1.5" Suggested RPM: 1200 - 1750