Size (diameter x length)
Compact (5” x 13”)
Mid-Size (5.5” x 22”)
Full-Size (6” x 31”)
Two variations of firmness
Original - Blue
Firm but flexible bumps
Closest to mimicking real thumb pressure
Great for all body parts, and works better around bony areas
Recommended for beginners switching over from traditional foam rollers, as well as experienced users
XFirm - Black
36% firmer than the original RumbleRoller
Helps with breaking up deeper, more dense muscle tissue knots
Only recommended for experienced users with especially dense muscle tissue that doesn't respond to normal massage pressure
Dig deeper into thicker muscles, but may be too painful to use on some body parts