New.  1/8" thick, corrugated rubber mat material for player piano restoration. Sold by the piece - approx 11-3/4" x 12" - enough to do two pedals on almost any player piano foot pump.  Slightly textured back helps give glue something to grip to.

I've been a player piano technician 30+ years and am glad to answer questions about this product before or after the sale. My contact info is included with each package and you can also reach me through eBay.