The Natural Birth & Fitness Ball Superior Anti-Burst Technology The anti-burst construction ensures that should this ball be punctured whilst in use, it will deflate gradually, preventing you and your baby from injury. Premium Birthing Ball Quality The birth ball is thicker, stronger & safer than most standard gym balls, It has a max weight load of 300kg and is independently tested to be antiburst when punctured to a weight of 120kg.Pregnancy/Baby Friendly: certified 6 phthalates Free. Latex Free. Heavyweight material: 1300g PVC. Non slip material for stability. Natural Pearlescent Colour All birth balls are a delicate pale natural colour. Photographic Instruction Guide The comprehensive instructions cover: * Use in Pregnancy for sitting comfortably, optimal foetal positioning and pelvic floor. * Full set of Pre-natal Exercises to stay fit in prenancy and prepare for labour. * Using the ball in Labour for a Natural Birth – coping with contractions, relaxation, progressing labour & using the ball to support mobile, active birth positions. * Full set of Post-natal Exercises Choose the correct size for you: A birthing ball needs to be bigger & firmer than a standard exercise gym ball. When sitting on the ball, with your feet flat on the floor, your hips should be raised approx 10cm above your knees. This raised sitting position brings the weight of the baby forward, giving relief from back pain & general discomfort felt in pregnancy. Also keeps the pelvis open & pressure off your lower back during labour & contractions. Select the correct size ball for your height: 55cm: Under 5’2 (Under 155cm) 65cm: 5’2 to 5’8 (155cm to 173cm) 75cm: 5’8 and over (173cm & over) The NBF ball – your New Best Friend