Effective for Relieving Sciatica Pain
I started using this product about 3 weeks ago to relieve sciatica pain. It has been very effective in relieving that  pain.<br />The vendor sent me an email shortly after the unit arrived, asking if I was happy withe it.  I advised them that the uniIt made an annoying &#34;Clack&#34; sound every time the balls changed direction.  They offered to replace the unit at no charge.  The new unit arrived a few days later.  It makes a &#34;Click&#34; noise when the balls change direction which is barely noticeable.  So, kudos to them for standing behind their product.<br />I would have given the product 5 stars but for two design deficiencies:<br />(1)  The AC power cord is only 4.5' long.  I have to use a 3' extension cord to reach a wall outlet.  An 8' cord would be a big improvement.<br />(2)  The unit should include some kind of detachable belt, so it can be attached to the chair and held in a fixed position when needed.
Rating: 4 stars