Great relief for tailbone injury, great for on airplanes.
Excellent. I purchased this after I had a tailbone injury. It made it so much easier to sit down.  I also used it on an airplane and even when I'm better, I think I'll still continue to take it on plane trips.  The pillow is great, so is the cushion.  The bag that comes with it is rather cheap and only has a short handle.  It really needs a shoulder strap so you can throw it over your shoulder and go - especially while traveling.
Rating: 5 stars