The Original Worm-Massage Balls & Foam Roller in one, easy to use, versatile massage tool. Great Travel Roller Massaging Roller provides trigger point release to combat stiffness, pain and stress in muscles and joints. Aids in improving flexibility. Completely portable. Combines benefits of therapy balls with a foam roller. 2 convenient sizes-6.3 (small) 9.5" x 2.75" - 7.0 (large) 10.5" x 3" Portable- great for car, plane, gym bag...anywhere Quality construction. Solid rubber balls encased in a durable, hand washable neoprene covering. 4 ball design safely molds itself to your body's contours with comfort and support. Easy to use. More therapeutic & portable than traditional foam rollers. Great for kids and dogs too! Recommended by Massage and Physical Therapists and trainers. Offering you relief when ever and where ever you wish. Targets back, glutes, hips, feet, legs, arm, calves, shins.