Roller String Guide - Chrome

I don't know if the two I got were typical or an aberration, but I'd describe them more as "barrel" style trees than roller trees. Technically, if I grab one side with a pair of pliers, I can get them to grudgingly turn, but not in a smooth or easy way. Functioning as fixed "barrel" trees, I still find them a big improvement over butterfly trees, and for the low price I paid, I'm not going to stress about it much, but they fell short of my expectations. NG Response: "Sounds like you may have received defective sets. Please contact customer service for replacements."