Anti burst gym balls are the best tools for strengthening your core muscles. This refers to the muscles from your chest down into your pelvis and encompasses all abdominal muscles. Also ensuring the product is nontoxic and then can be safe to use of children. It is suitable for family, backyard, school ground, playing centre, amusement park, swimming pool and seashore scenic spot. Anti burst improves the strength of the product. So the lifespan of the products will be extended. Balance ball is great for pilates exercise, yoga, back, abdominal training, pregnancy gymnastics or the hundreds of low impact exercises. Can also be used as office ball chair to improve your posture & relieve back pain. Easy to Grip: featuring massage spikes for tactile stimulation, the large sensory massage ball doubles as a big yoga ball, encouraging kids to engage in physical activity and coordination exercises; This surface's uneven touch stimulates your