We The Planet Stability and Balance Ab Ball Yoga Fitness & Exercise Ball 55CM, 65CM Medicine Ball by GET A FULL BODY WORK OUT: Slip-resistant yoga ball helps release muscle tension, improve balance & flexibility and build core & back strength. Available in 55cm / 65cm size. EXTREMELY VERSATILE: Perfect for yoga exercise ball and Pilates enthusiasts, personal trainers, busy moms and executives, physical therapists, coaches, rehab centers, seniors & much more. ECO FRIENDLY: Made of thick, burst-resistant recycled material that provides firm stability and reassuring comfort. Includes air pump & instructions so you can start using it immediately. OFFICE OR HOME: Take your fitness to an exciting new level! EASY TO CLEAN - our fitness ball is easy to clean with just a soft damp cloth. Most important, our fitness ball is phthalates free and doesn't contain any heavy metal elements <span class="a-text-bold">Get an Intense, Full Body Workout</span>: Slip-resistant yoga ball helps release muscle tension, improve balance &amp; flexibility and build core &amp; back strength. Available in 55cm / 65cm size. <span class="a-text-bold">Extremely Versatile</span>: Perfect for yoga and Pilates enthusiasts, personal trainers, busy moms and executives, physical therapists, coaches, rehab centers, seniors &amp; much more. <span class="a-text-bold">Made of thick</span>, burst-resistant recycled material that provides firm stability and reassuring comfort. Includes air pump &amp; instructions so you can start using it immediately. <span class="a-text-bold">Antibacterial</span>: Special additive helps prevent mold, bacteria &amp; fungus. Use this ball again and again without worrying about cleanliness. Take your fitness to an exciting new level! <span class="a-text-bold">Easy to clean</span> - our fitness ball is easy to clean with just a soft damp cloth. Most important, our fitness ball is phthalates free and doesn&#039;t contain any heavy metal elements