Features: A wide array of users: It is ideal for the young, the elderly, the injured or the elite athlete. Multifunctional: Multiple uses for balance, core stability, endurance and strength training. It can use on both sides: Lying flat for balance and strengthening exercises for upper body and leg,on the convex side additionally for push-ups and dips. Dome shape: The instability of the dome increases the difficulty of the exercise and really improves balance and core stability. Good for your health: Significant calorie burning aid when used as an alternative to sitting,for strength, coordination and balance training. Descriptions: Heavy duty balance dome ball suitable for gym or home use. Perfect for fitness and easy and convenient for carry. Two elastic strings included are ideal for keeping balance. Relax your arm,leg and back in all around complete sides. Great for sports conditioning as well as standard workouts. Specifications: Color: black&blue Material: PVC ball and ABS base Item size:approx.59.5*59.5*23CM Package size:approx.61*11*61CM Package Included: 1 x Balance Yoga Trainer Ball 2 x Lifting Rope 1 x Air Pump 2 x Air Stopper Notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks!