From left to right are the Pro-Tec Orb, the (original) MobilityWOD SuperNova, and the RumbleRoller Beastie.
Here’s a photo of the MobilityWod SuperNova by itself.
I took the above photos for a post about the MobilityWod SuperNova over at BodyBuilding.com. (That same post discusses the Body Back Buddy, Thera Cane, Rumble Roller Beastie, and a number of other massage tools.)
This is what I had to say about the Supernova in that post:
The SuperNova is only slightly smaller than the Orb, but is quite a lot heavier. Its textured surface does slip less often than the Orb when in use. It’s slightly smaller size also allows for slightly easier penetration into muscle tissue.
I’ve been using them both. At the moment, I slightly prefer the SuperNova due to the fact that it doesn’t slip as much. However, there’s a quite a difference in price. At the moment, the Orb can be purchased for less than $20 while MobilityWOD Supernova costs just slightly under $40. (It’s not clear to me whether or not the version pictured above is still available. The 2.0 version has somewhat different nubs.)