They come in different sizes, but it is just an 0-ring from plumbing. I think it looks pretty cool, too. Thanks.
Wow, these Olive Wood handles are beautiful. I reckon I'm gonna have to order one of these. SWIBO likes.
Great job on the VDH. I received that exact set as a gift. Gave it to #2 son to get him started in wet shaving. The handle is wood painted blue. Holding up ok so far. Great idea if the knot lets go.