Like it's cousin, (the Acuforce 7.0) this tool uses it's own weight (2.5 lbs.) to provide pressure during your treatments. This saves your hands and wrists from injury and fatigue. The tool has 2 applications to perform muscle stripping, cross-fiber friction and trigger point therapy. Made with a natural feeling skin-like material, it is nearly impossible to differentiate from the therapist's hand. Patent Pending.