The spiral type of sewed buff is by far one of the oldest and most generally used buffs.
The density or hardness is controlled by the width of space between the spiral stitching. The closer the sewing the harder the buff is, which is why the 3/8″ is the most popular width of spiral sewing.
1/4″ Thick – 3/8″ Spiral Sewed – 20 Ply
64/68 Cloth count