The BOSU(R) Exercise ball was designed by personal trainers to be the most versatile and durable exercise ball on the market. This starts with where the BOSU(R) Exercise Ball is made, right here in the USA. Designed with burst-resistant material that's able to withstand 1,000 pounds of pressure. Added texture ensures you won't lose your grip even during the most intense workouts. Trust your exercise equipment with BOSU(R), a brand that's been innovating in the fitness industry for over 20 years. DETAILS: Burst resistant Made in the USA Designed by personal trainers Anti-slip grip Pump included 1 Year Limited Warranty