The GRID® Foam Roller, the original hollow core roller, features a patented multi-density foam surface that delivers firm compression like a sports massage while channeling blood and oxygen needed to repair muscles. The GRID® Foam Roller is the 'go-to' roller to release muscle pain and tightness, improve mobility, increase circulation, and is recommended by sports doctors, chiropractors, and physical therapists.

• Three-dimensional surface allows tissue to aerate while you roll, promoting the flow of blood and oxygen—the nutrients needed to repair muscles
• Hard, hollow core hand-wrapped in EVA foam makes it firmer than traditional foam rollers
• Environmental design uses less foam than traditional foam rollers
• Compact and travel-friendly
  
• Dimensions: 5.5 in wide x 13 in height x 5.5 in depth
• Weight tested to support up to 500 lbs/225 kg static load