DescriptionMade of material, This extra-firm ball muscle roller are perfectly fit for rolling along the spine, hip-bone or anywhere you'd like a larger area of massage than a single lacrosse massage ball would cover.Features- Color: Black. - Material: EVA. - Size: 10 x 10 x 10cm - Made of material, no smell or seams, practical and durable. - Rubbing out tension from the of the neck down to the sacrum, from the base of the spine to the toes. - Easy to use- Great for rolling, rehab, physical therapy, self massage, pilates, and interval training recovery. - This extra-firm ball muscle roller are perfect for rolling along the spine, hip-bone or anywhere you'd like a larger area of massage than a single lacrosse massage ball would cover. - Easily integrates into any yoga, pilates, cycling, running, weightlifting, physical therapy, occupational therapy, rehabilitation, and sport's medicine exercise routine.