The Grid 2.0 offers the same revolutionary Distrodensity Zone Matrix technology as the original, best-selling Grid foam roller from Trigger Point Performance. The length has been doubled to expand the targeted workout areas. with the Grid 2.0, you are able to comfortably roll out calves, quads, hamstrings, glutes, back, pecs, thoracic spine and more. The Grid 2.0 is an indespensible exercise and massage therapy tool that you"ll want to include in all of your pre-and post-workout regimens.