-Rumble Roller Most Versatile Roller
Gator is more beginner friendly than Rumble Roller's deep- tissue rollers, but don't mistake it for a beginner's roller. The advanced features of this roller benefit even the most experienced athlete.
-Gator Provides High Compression
The first thing to note about The Gator is that its firm surface and small diameter (about 4.5" or 115mm) produce high comprehensive forces in the muscle. You'll also find that the smaller diameter allows you to better work smaller body depressions, such as the arch of your foot or the curve in your neck
-Plus Cross Friction
Pressing harder and deeper isn't the only way to massage a muscle. Another way to free stuck tissues is to pull them apart. Of course you can't grab the deeper tissue directly, but you can move higher layers of soft tissue to create a separating (shear) force that displaces underlying layers. This approach is often referred to as cross frictional massage.
Cross frictional massage is normally done by a massage therapist who uses his thumbs or fingertips to apply short, firm stokes across the muscle fibers. RumbleRoller's Gator is the only foam roller that can grip your skin well enough to mimic this type of massage.
-How it works
If you look closely at Gator's surface, you'll see hundreds of tooth-like bumps with slightly concave ends, flat sides, and prominent edges. The bumps are very resilient, but have high lateral stiffness and generous skin-holding spaces between them. This patent pending surface grips bare or lightly clothed skin, and resists slippage in all directions.