Too small
Didn't work out for me.<br />- This thing is way too small. 16" in width and 9" in height barely covers the width of my back and I'm just an average size person.<br />- The straps they provide are not even close enough to  wrap around a standard chair to hold it in place.<br />- After sitting less than 10 minutes, my back is so sore.
Rating: 2 stars