1. Exercise Ball with E-Quick Start Workout Guide by CRUSH FITNESS - Gym Quality, Anti-Burst, Anti-Slip Fitness Ball. More colors and sizes available aka Yoga Ball, Swiss Ball (Black, 65 Centimeters) (Click Link to Check Price on Amazon)
Editor's Rating : 9.2 out of 10
EXERCISE BALL and E-Quick Start Workout Guide by Crush Fitness Personal Trainers- GUARANTEED to be the Highest Quality Material on the Market Today. 100% Money back guarantee if you are not satisfied.PROFESSIONAL GRADE Fitness Ball includes a Pump, Plug, and Plug Remover Tool- Highest Quality PVC Material

2. Anti-Burst stability Gym Quality Yoga Fitness Balance Swiss Ball with easy to use Foot Pump Pink Purple Blue Silver Grey Color and Sizes 55 65 75 CM (Click Link to Check Price on Amazon)
Editor's Rating : 9.8 out of 10
Helps relax muscles, remove tension and increase tone.Increases flexibility in abdominals, thighs and lower back.

3. Reehut Anti-Burst Core Exercise Ball w/ Pump & Manual for Yoga, Workout, Fitness (Blue, 85cm) (Click Link to Check Price on Amazon)
Editor's Rating : 9.7 out of 10
5 sizes available: 45cm (fit for 4'7"and under), 55cm (fit for 4'8"to 5'3"), 65cm (fit for 5'4" to 5'10"), 75cm (fit for 5'11"to 6'4"), 85cm (fit for 6'5" and taller).Ideal for strengthen the core muscles, improve balance, lose weight, tighten & tone, etc. Great for gym, home, travel and office use. 

4. Yoga Ball 25" 65cm Exercise Gymnastic Fitness Pilates Balance w/Air Pump (Silver) (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
Used By Countless Physical Therapists And Personal TrainersWill Help Develop Your Overall Body Muscle, Balance And Coordination

5. Exercise Ball,Sportsvoutdoors [Anti-Burst] [Slip Resistant] [Extra Thick] [Durable] for Yoga,Balance,Workout/with Pump-45cm 55cm 65cm 75cm 85cm (Red/21.7inches) (Click Link to Check Price on Amazon)
Editor's Rating : 9.9 out of 10
A free foot-pump is included! a free starter kit is included! size option - 45cm,55 cm, 65 cm,75cm or 85cmIdeal for strengthen the core muscles,improve balance,lose weight,tighten & tone, etc. Great for gym,home,travel and office use