The GRID 2.0 Trigger Point Foam Roller is twice as long as the GRID 1.0 to accommodate larger bodies or offer a more stable surface. Use the GRID 2.0 for a self-massage and roll through the tight muscles, knots and kinks that prevent feeling good and moving well. TriggerPoint’s GRID 2.0 foam roller is designed with proprietary Distrodensity zones. This three-dimensional surface has a variety of widths to replicate the feeling of a massage therapist’s hands.