Make big improvements in your balance, strength and flexibility with the new Zen Flex Yoga Ball. Holding long poses on the yoga ball with slow movements and deep breathing increases the flow of blood in the body, warms and prepares the muscles.all which help to build your strength. Working with the Zen Flex Yoga ball regularly will help relax and improve the quality of sleep. Made with highquality slipresistant material, ude the Zen Flex Yoga ball ease the stress from tired bodies for a relaxed mind and body. Zen Flex Yoga Ball is made with highquality and nontoxic PVC material it's easy to clean and wipe down after a session. Features Improve your balance, strength and flexibility Improves your sleep quality and keeps you relaxed Eases body stress Highquality nontoxic PVC material Slipresistant ball Quick inflation pump supplied Available Sizes Small – 65cm Large – 85cm Available Colours Blue Care Instructions Clean with a soft damp cloth Do not expose to strong sunlight.