Mini Yoga Ball, Pilates Ball 9.84 in with Inflatable Tool, Core Ball Workout Ball for Stability Physical Therapy Fitness, Purple - Walmart.com
Amazon.com: Pilates 4" (10cm) Accessory Mini Ball for AeroPilates, Yoga, Fitness, Strength, Pilates Reformer or Mat Pilates (Blue) : Sports & Outdoors
Amazon.com: Small Pilates Ball, Therapy Ball, Mini Workout Ball, Core Ball, 9 Inch Small Exercise Ball, Mini Bender Ball, Pilates, Yoga, Workout, Bender, Core Training and Physical Therapy, Improves Balance : Sports