Some are just a little scruffy (will probably clean up OK). Fine for a lot of power tubes - 6550 KT88 etc. No rubber O-rings (which are supposed to go around the coolers for a tight fit to the valve) - I lost these waay back - the dang things wouldn't fit on the 6550s I was using then - when trying to put them on it felt that the tubes would shatter first! They don't really need them anyway, the coolers are rubberised and fit quite snugly. Offers? Can't remember what these cost - but I know it wasn't cheap! How about £4 a pop - inc. UK P&P? PayPal accepted. See here for photo: [URL]http://www.hifiwigwam.com/forum5/18148.html[/URL]