Stability Ball™ with pump - 65 cm for Pilates | Merrithew®
Greater Goods Professional Exercise Ball - Yoga Ball for Working Out, Balance, Stability, and Pregnancy | in Multiple Sizes (Small, Medium, Large) and Colors | Designed in St. Louis 55cm Blush Pink
Stability Ball™ with pump - 55 cm (Black) for Pilates | Merrithew®
Amazon.com: Live Infinitely Exercise Ball (55cm-95cm) Extra Thick Professional Grade Balance & Stability Ball- Anti Burst Tested Supports 2200lbs- Includes Hand Pump & Workout Guide Access : Sports & Outdoors