This Gymnic exercise ball is a great way to improve your balance, coordination, and core strength. It's made of high-quality, durable PVC and is designed to withstand even the most intense workouts. The ball is 55 cm in diameter and is perfect for people of all ages and fitness levels. It can be used for a variety of exercises, including core strengthening, stretching, and balance training. The ball is also great for use in yoga, Pilates, and physiotherapy. This ball is deflated so you will need to inflate it yourself with the use of a bicycle pump. Keep your Gymnic exercise ball out of direct sunlight and away from extreme temperatures to help keep it looking its best. Gymnic Exercise Ball Specifications: - Size: 55cm - Colour: Yellow - Material: PVC - Max. Weight: 150kg