Odoland 6-in-1 Large Size Foam Roller Kit with Muscle Roller Stick and Massage B... $26.99 Make sure this fits by entering your model number. 6-In-1 Foam Roller Kit: Included 1* large size 18’’ foam roller, 1*18’’muscle roller stick, 3* best rank massage balls, and 1* portable bag. Convenient and portable, easily fit in your gym bag or backpack and take it anywhere! Meets all you need: Large size foam roller is perfect for back muscle and thigh muscle relaxation. The muscle roller stick is not only for calf and thigh muscle, but also for neck relaxing. And the 3 massage balls work well in deep muscle knots.