What's the difference between the Chirp Wheel+ and the Chirp Wheel Sport?

The Chirp Wheel+ has over 20mm of padding along with a spinal canal for your spine to rest. If you're just looking for back pain relief, this is the wheel for you.

The Chirp Wheel Sport has about 6mm of padding and no spinal canal. While it can be used like the Plexus Wheel+ for back pain, it is also very versatile in the sense that it can be used on different parts of the body like a foam roller due to the even surface and higher pressure.