Bigtree Exercise Ball Extra Thick Yoga Ball Chair Anti-Burst Heavy Duty Stability Ball Birthing Ball with Quick Pump Blue 65CM

The yoga ball is made of high quality PVC. They have durable reliability and it USES recyclable and biodegradable skin care and environmental protection PVC materials, more comfortable. If the ball is rolling through a spike and a pin or something like that, or you can squeeze it under a heavy load, it's designed to protect you with a slow and safe air to protect you from the damage, not to burst like a balloon. The wall thickness of our yoga ball is greater than that of ordinary yoga ball. The PVC case, even under inflated or overstressed, has a uniform thickness across the surface of the ball. This provides better resistance to all side perforations and prevents the ball from leaking through the air. It USES matte textured finishes and horizontal lines to bring safer grip and help prevent slipping. This type makes it easier to focus on proper alignment and hold for long periods of time.