Product Description1. The small yoga ball is made of durable non-slip PVC with a honeycomb structure to prevent it from bursting. The matte surface has enough grip to feel stable and secure, yet soft enough to allow you to move around. You can easily use the exercise ball for any related workout without worrying about falling to the floor.2. MULTIFUNCTIONAL: The small Pilates balls help enhance your Pilates, barre, core strengthening, and yoga practice and improve the strength and flexibility of your abs, upper body, and lower back. The durability and stability of the flexible ball allows you to squeeze it between your knees, under your back, and bounce safely off the floor. This yoga ball is a great gift for a lover or friend.3. PORTABLE AND EASY TO STORE: If you travel frequently but don't want your travels to interfere with your workout routine, simply throw this mini yoga ball in your suitcase.4. The stability ball comes with a straw, please make sure to inflate the ball a little more than usual and then quickly cover the hole with your finger when trying to plug it in. 5. Recommended by Sports Trainer: The mini exercise ball for women/men is suitable for physical therapy, especially waist rehabilitation, because a good exercise with a soft ball can strengthen and develop the body muscles that support the spine.