... machines, hook&loop backing Aluminium oxide.Disc ideal for use on static machines, hook&loop backingCODEDESCRIPTIONPACK230098150mm, 60 Grit 230099150mm, 80 Grit ... Grit 230108300mm, 60 Grit 230109300mm, 80 Grit 230110300mm, 120 Grit sanding discs