The roller needs a redesign - keeps falling apart [SEP] I can't use the roller more than a minute before the roller pops off the handle.  We've removed the plastic sleeves which helped and forced the wire bars closer together, gently to not scratch them up - yet the rollers continue to fall out.  This needs a redesign so the bars slide deeper into the roller to prevent it coming apart. Great concept - bad execution.  The single gua sha tool is nice quality though it should be a tad bit thicker like all other quality gua sha tools I've used over the years so I'll give this set 2 stars overall. Would be nice to include a soft pouch as well, thankfully I already had a cloth pouch to repurpose for this set.