The bases are made from 7075 aluminum and machined to extreme tolerances and then polished to a near mirror finish. The bearings are made from Grade 10 high carbon steel, which are very effective. These outperform solutions at several times their price.
Used under your components they will open up the soundstage, increase in detail and will tighten up the lower frequencies. Recent customer email feedback was “adding your Rollerblocks was more like an entire component upgrade to my system than just a tweak”. I can’t promise the same experience, but I’m confident you will gain a huge improvement.
(3) 1.5” round .75" tall high polish bases
(3) Grade 10 1\2" bearings
Total height is 1.080".