Rubber Pipe Bits (2 pack)

I have these on all my pipes. Not only do these make clenching so much easier and comfortable, you're also saving your stems from all the teeth marks. Win win.

Got these hoping to spare my stems from getting chewed up. They do the trick! Even on my really wide stemmed Edward’s oom Paul. For that it was a tight fit to get on there, but it works very well. A+.
(Would really like if SP offered larger packs of them)

I can't go back to clenching a bare stem after using these. Protect your pipe and more importantly your teeth. Work surprisingly well with Peterson P-Lip pipes if you slide it down the stem past the hole.

Flexible and tough enough for pretty much any pipe, and comfortable enough to want it on every pipe. Only complained is that these are too big for some of the smallest pipe stems, but that just means they need to come up with a smaller version as well!

These are awesome. I was skeptical at first, but they are wonderful. I've tried other knock of brands from Amazon and they were crap. These are nice and snug, and aren't bulky. Get a package next time you buy something. They're cheap!