We call them 'High-Tech Cable Donutz,' and yes, we realize that sounds a bit ridiculous; after all, how high-tech can a simple rubber donut be? Maybe a better name would have been "Borderline-Pointlessly-Analyzed and Obsessed-Over Cable Donutz," but that doesn't fit on a small package.
The name may be a joke, but our Donutz are all business:
Tight fit: We made the aperture in the center of the Donut as small as possible while still allowing easy threading onto brake and shift cables.
Better grip: High grade rubber with a natural stickiness to the surface and high compressive qualities was a must for us. It costs more, but it works better.
Right durometer: Is there anything worse than really hard cable donuts that protect the paint job of your frame but rattle and ping the whole ride? Our Donutz are just soft enough that they won't do that, but firm enough to hold their place on your cables for less migration.
Buy Hudz Hi-Tech Cable Donutz from Chain Reaction Cycles, the world's largest online bicycle store.