DescriptionTake control and meet your fitness goals without expensive exercise equipment. Using a stability ball will improve the strength of your abs and lower back. Since a Yoga ball is unstable, you have to use your bodys core strength to remain balanced, which in turn improves proprioception, flexibility and body alignment.Features- Color: Purple.- Material: Silica gel.- Diameter: 6cm.- Enjoy Outdoor Fitness Sessions: Take the yoga ball outdoors, exercise in the fresh air, and let nature be your coach.- Train in the Comfort of Home: Train, stretch, and take care of your body without even leaving the house.- Keep Fit at Work: Experience a new way to stimulate your muscles by simply sitting in the office.- Exercise balls are perfect to increase balance, strength and flexibility.- With this versatile piece of fitness equipment you can get trim and toned by exercising abs, back, glutes, hips, arms and more making it the full-body tool.- Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!