10 New old stock (enough for 5 blocks, 2 needed for each block) Wurlitzer valve block fiber pouch rings, about 1/16" thick, approx. 1-23/64"OD (1/64" under 1-3/8" so it fits in the well for the pouch)" 1-1/8" ID". Fiber. Half the rings will need a 1/8" section of the ring clipped and oriented over the bleed recess. PPC part #703, last photo shows catalog listing from early 1980's.
I'm Howard Gustafson and I've been a player piano technician since 1985. I'm glad to answer questions about this item (or any other item we sell or you think we should sell) before or after your purchase. My contact information is included with each shipment and you can also reach me through eBay. Your success with my products is very important to me, please don't hesitate to contact me with questions or suggestions.