Yoga Exercise Ball, Heavy Duty Large Gym Ball, Anti Slip, StableSAFE AND ANTI BURST: Exercise ball is made of high quality, eco friendly PVC material, which meets stringent safety standards. It's non toxic, odorless, and free from harmful heavy metals. With an anti burst honeycomb structure, it ensures durability and safety during your workouts. ENHANCED STABILITY: This yoga stability ball is designed with non slip lines that provide excellent grip to prevent slipping or sliding during your workout. Its sturdy