Minimum desk height of 26 inches is required for this product. Measure your desk before purchase. This is the original active sitting ball chair solution, ideal for use in the office, at home, in the living room, classroom, or gym. It serves as an ergonomic alternative seating option for desk use or standing desks. Promotes health by activating back and core muscles, encouraging proper posture and potentially helping to relieve back pain for adults and children. Provides a comfortable seating option suitable for use as a pregnancy ball, labor ball, or medicine ball. Ideal for abdominal exercises, yoga, back stretching, posture training, physical therapy, and balance workouts. Supports joint flexibility and promotes a healthy lifestyle. Features a patented self-standing base with a 400-pound weight capacity and an extra-thick carry handle, combining the benefits of a Swiss exercise ball and an ergonomic office chair. Available in two materials: rough felt and super fiber cloth. Package includes: yoga ball with an additional air plug, ball cover, inflation pump, and instructions. Some assembly required. Use the included accessories (hand pump or air pump adapter) to inflate the inner ball until the outer cover is fully filled. Contact the seller if the inner ball appears too small or if inflation takes longer than 20 minutes.