Size:diameter 4.5 inch,bore 7/8 inch Material:Compressed Wool Felt Material:Compressed Wool Felt,which are environmental-friendly, sturdy and wear-resistant with longer service time. Application:Suitable for polishing of metal, wood, glass,stainless steel,tableware, precision instrument, marble etc. Features:Smooth and bright polishing effect,surface fine finishing, best used with polishing compounds to produce a high finish on all dies and molds surface. Size:Wool felt buffing wheel pads diameter 4.5 inch,bore 7/8 inch, fit for 115 Angle Grinder Package include: 10 pieces wool felt polishing wheel pads