Ideal Plastic Salver & pad for sanding paper disc Size: 4",4.5",5",6",7". Ideal Plastic Salver & pad for sanding paper discSize: 4",4.5",5",6",7". PLASTIC BACKING PAD4"M10*1.25,M10*1.5,M14*24.5"M10*1.5,M14*2,5/8"-11NC5"M14*2,5/8"-11NC6"M14*2,5/8"-11NC,M16*27"M14*2,5/8"-11NC,M16*2