The Perfect Fitness hollow-core foam roller Pro provides target therapeutic massage. Use the perfect roller Pro before or after a workout to help gain flexibility, enhance recovery and improve overall performance. The unique channel design mimics the feeling of a hand massage increasing blood and oxygen flow to targeted muscles. Durable construction hollow core means the foam roller won’t break down or lose its shape with repeated use. 13 inches x 5.5 inches x 5.5. Inches; 1 pound.