Effective in stretch but not trigger points.
The material is moderately firm with slight comfort give. The bumps on the surface are too shallow to have any affect as trigger points. But the overall affect was beneficial regardless. I did find additional benefit from laying on my side with it, as I have particular lateral issues as well.<br />The outer height is 4.5”, while the center height is 3.5”. The gentle curved side has an incline of ~48 degrees, while the intense side has an incline of ~80 degrees.<br />Useful instruction booklet included.
Rating: 4 stars