Take foam rolling to the next level with the Roll Recovery R4. The R4 massage roller delivers an enhanced rolling experience thanks to its unique features. The R4 targets specific muscle groups with its size, surface texture, foam density and shape. The first thing you’ll notice is the center groove. Roll designed the groove to align with your spine and neck so you can roll those hard-to-reach muscles, while the broad sides provide maximum surface areas for larger muscles, like your hamstrings, quads and glutes. Engineered from a proprietary high-density EVA foam, the Roll Recovery R4 gives you the precision and versatility you need to stay at the top of your game.