Improve alignment and flexibility and speed up recovery with The Wavy Roller. Made of a dense, supportive foam in a take-it-anywhere size, this roller is purposefully designed for releasing tension, stretching, and rehab. The patented waves help you work out all your toughest knots and tight spots Product Attributes: Includes 1x Wavy Roller. Purposefully designed for yoga, stretching and rehabilitation. Made of a dense, supportive foam. Product Dimensions: 12” x 4” x 4”