About 1/16” thick. 2 tier has 2 rows of unit pneumatics, 3 tier has 3.
100 ProFit Cork Gaskets, 3 Tier Simplex Player Piano Unit Pneumatics, New Style
100 ProFit Leather Gaskets 3T Simplex Player Piano Unit Pneumatics, New Style
100 ProFit Leather Gaskets for 2 Tier Simplex Player Piano Unit Pneumatics
100 ProFit Leather Gaskets for Plastic Doyle Lane Lauter Humana Unit Valves
6 ProFit Cork Gaskets for Simplex Player Piano Unit Pneu Valves, New Style 2Tier
6 ProFit Cork Gaskets, 3 Tier Simplex Player Piano Unit Pneu Valves, New Style
