EXTRA SUPPORT - Firm high-density foam structure of the half-round foam rollers provide extra support for all body types while practicing balance, core exercises or stretching without losing shape after regular use. STRETCH & STRENGTHEN – This versatile fitness foam rollers work to help stretch tight muscles after a workout or can be used as a core stabilizer for muscle strengthening. Try with multiple sizes of the dense semi-circle foam rollers together for an extra fun challenge! TEXTURED GRIP - Patterned surface provides gentle non-slip grip and extra traction during hand or feet half-round foam roller exercises like push-ups, planks or single-leg lunges. It also provides extra safety when used for physical therapy exercises. EASY TO MAINTAIN - All our firm fitness foam rollers are made of durable and eco-friendly high-density expanded polypropylene (EPP) that's easy to clean and lightweight TRAVEL FOAM ROLLER - Available in 12 inch, 18 inch and 36 inches, all half-round foam rollers are designed for convenient storage and portability for on-the-go workouts at the gym or in a hotel room