As good a product as I had hoped for
I have had the metallic model with the wooden balls on the end for 25 years.  That one has stood the test of time.<br />But I wanted one that would fit into my case went I go on my service calls, as my back sometimes starts hurting.<br />With a little lubrication and wear, this snaps together and pulls apart easily.  When together, it is firm (acts as a solid S piece)<br />It works as well as the solid metallic model.<br /><br />What I discovered is that I don't really need the full S.  I have enough leverage with half of the S to get at the trigger points all over my back, shoulders, neck.  So, I can do pretty well carrying just half the S in my case.  I recommend this product.
Rating: 5 stars