New in Box.
 
Part No. 44-737
 
8in Diameter, 1.75in Thick
Wool and Synthetic, 100% Wool, 4-Ply Wool
Yellow - 50ppi, Green 60-ppi, Blue 70-ppi, Black - 80ppi, White 90-ppi
With Loop Backing - For use with Hook Backing Plate. 
 
Features a 5/8"-11 metal threaded Backing Plate attached.
Features a 5/16" No.24 metal threaded Backing Plate attached. 
With .25" Spindle Backing Plate attached