1.material:brown fused alumina 2.usage:MDF,furniture,wood,stone 3.any size is available 4.fast delivery Our company produce of oxide the aluminum sanding ring,adopt the local cloth with high quality emery and cloth gasket. Which are broadly used in industries like mould polishing,craftwork fabrication,bijouterie,dental workshop,nail,cosmetology.Grit:80# ,120#,150#,180#,240#. Sanding Ring Drums