Sanding Plate
From Amazon
Fein 63717230020 FMM-Accy Round Perforated G40 Sanding Sheet, Multi-Colour, 40 Grit, 16-Pack
HSS Toolshop
Fein 115mm 40G Sanding Discs - 16 Pack (63717230020)
Conrad Electronic
Fein 63717230020 Perforated Sanding Sheets, 16 Units, Grit 40