1 YEAR UNLIMITED WARRANTY - No Hassles, No Gimmicks If you’re not thrilled, simply contact our customer service team and we will make it right!RESPONSIBLE MATERIALS- Made from Professional Grade PVC material that can support 2200Lbs are nontoxic, BPA, Latex, heavy metal and phthalate FREE. Safe for you and your family!ANTI-BURST TESTED- Heavy duty PVC non-slip ridge guarantees every ball can withstand up to a 2cm cut without explosively deflating. Strongest on the market!BACK RELIEF- Perfect to improved posture and to relieve lower back pain. Use for home exercise, yoga, pregnancy or to improve your core strength. Great for desk chair replacements!ALL INCLUSIVE – Includes hand pump, 2 air plugs & valve remover tool. Get instant access to our digital exercise guides and online training workouts that are all mobile friendly