【TRUSTED BRAND Amazon.com Limited Brand】Primasole is a fitness brand established in April 2019. Our lineup includes a yoga mat, exercise & balance ball , balance disc, and foam roller. We are here to help you incorporate fitness into your daily life. 【CHOICE OF4 SIZES & 5 COLORS】Choose from 45, 55, 65, or 75‑cm size to suit your height and purpose. Wide range of sizes helps you find the ideal ball for yoga, ab work, Pilates , core training, pregnancy exercise, or office chair. Five different colors to coordinate with any mood, style, or preference. Choose from indigo blue, silver gray, nail pink, pale gray, blue and Black. 【Secure Grip and Safety】Burst-proof construction ensures air will escape slowly. European toy safety standard tested and made from high-stretch material. 【Strength core and flexibility 】Balance balls are perfect for all types of training at the gym or in your home. You can comfortably work almost every major muscle group. Stability work is great for your core and can also help improve overall flexibility, balance, and coordination. It even does your posture a solid. 【Accessories】Inflator, cap, cap opener, paper tape measure