Made with thick and durable materials. We put your safety as a top priority during manufacturing. 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. Large durable balance ball, Ideal for aerobic exercise.Helps to tone your muscles, Improve both your core strength and your natural balance. The PVC body has a matte surface with horizontal ribs contoured all around it -- making it easy to hold without slipping while tossing, bouncing or squeezing the ball even with profuse sweat.