EXERCISE BALLS: ULTRA TOUGH CONSTRUCTION FOR PERFECT CORE WORKOUTS! Do you love working out and rather than endless sit ups, would like a super convenient way of performing back, stomach and core strengthening exercises. Would you like a super durable exercise ball with an ultra safe, high grip surface. If so, our Exercise Balls are the perfect choice! With an extra large diameter, our Exercise Balls are perfect for home workouts with a tough, rubberized surface allowing you to perform a range of balance and stability exercises to strengthen your abdominal muscles, perfect for use with yoga, pilates or for general strength and balance training! Ideal for the home exerciser, our Exercise Balls are manufactured from ultra tough, burst resistant rubber, perfect for tough or weighted exercises, with a non slip surface for safe, everyday use. Perfect for both men & women, our Exercise Balls are available in 55cm, 65cm and 75cm diameters and blue or black, for easy co-ordination with other workout equipment! Our Exercise Balls are premium quality, with a number of key benefits: - Perfect for strengthening the abdominals, core and lower back muscles. - Manufactured from burst resistant, durable pvc, perfect for tough workouts. - High grip, non slip surface for safe use when performing weighted exercises. - Perfect for use with yoga, pilates, or for general strengthening & balance. - Kit Includes: Workout guide, extra plugs and pump Available in Multiple Colours: Black, Blue, Pink, Red, Silver, Purple, Green. Available in Multiple Sizes: 55cm, 65cm and 75cm diameters. If you're tired of endless sit-ups and would like a professional quality, ultra durable, burst-resistant exercise ball, perfect for tough workouts and everyday use, our Exercise Balls are the ideal choice for the beginner and advanced exerciser!