What is this cable/hose management clip? (picture) I've purchased a RockShox Reverb seat post, and its come with these delightful little Cable/Hose clips.  Since my bike frame only comes with built in cable clips for the brakes and shifters, these little guys allow you to attach your cables to existing cables.  Problem is, I don't know what they are called or where to buy more because I'd like some more :D

Anyone know what these are called and where I can buy more?
Bike parts.com lists them as Sram rotating dual line hooks # BPC 147851.