Pad type:flat round
Pad diameter:8mm
Plungers stroke: 6mm
Holding thread: external M8
Pad color: white
Pad material: SI (NBR, SI, SE, PU, FKM, NR, EPDM are available
We sale the cups on Ebay.This is the link,http://www.ebay.com/itm/331920345853?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 .If you buy more,I will give you a discount.