TriggerPoint The Grid 2.0 Foam Roller is firmer than traditional rollers. The hard, hollow core with three-dimensional surface promotes flow of blood and oxygen which helps to repair muscles. Twice as long, the Grid 2.0 accommodates larger bodies and has a more stable surface. The Grid has been designed for athletes and people of all types - from long distance runners and endurance athletes to gym and yoga enthusiasts.Features Three-dimensional surface allows tissue to aerate while you roll, promoting the flow of blood and oxygen - the nutrients needed to repair muscles Proprietary Distrodensity zones replicate the feeling of a massage therapist's hands Hard, hollow core hand-wrapped in EVA foam makes it firmer than traditional foam rollers 26" length can accommodate larger bodies or offer a more stable surface For beginners to advanced rollers