The correct name is WAMULASS. They are no longer available. They are by far my favourite tire I've used. I remember buying a brand new set from the dealer years ago for my 82 and I wish I bought a few more sets. If you find them now they are pretty expensive. I was successful at patching a hole from the inside of the tire.I dry fit the used Warmulas (sp) to see if it would leak down, and it did. So I need to see if the tire has a hole, or what. If the tire leaks I'll need to buy a tire or tube.