Photo 1 of Tradder 12 Pack Chair Ball with Feet for Kids Classroom Seating Ball Yoga Ball Flexible Stability Exercise Ball Chair with Air Pump for School Students Sitting (Roes Red/Green/Orange/Blue, 18 in)

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Photo 1 of Tradder 12 Pack Chair Ball with Feet for Kids Classroom Seating Ball Yoga Ball Flexible Stability Exercise Ball Chair with Air Pump for School Students Sitting (Roes Red/Green/Orange/Blue, 18 in)Photo 2 of Tradder 12 Pack Chair Ball with Feet for Kids Classroom Seating Ball Yoga Ball Flexible Stability Exercise Ball Chair with Air Pump for School Students Sitting (Roes Red/Green/Orange/Blue, 18 in)Photo 3 of Tradder 12 Pack Chair Ball with Feet for Kids Classroom Seating Ball Yoga Ball Flexible Stability Exercise Ball Chair with Air Pump for School Students Sitting (Roes Red/Green/Orange/Blue, 18 in)