Trident Exercise Ball with Ring - 65 cm

Trideer Ball Chair Yoga Ball Chair Exercise Ball Chair with Base for Home Office Desk, Stability Ball & Fitness Ball Seat to Relieve Back Pain, Home Gym Workout Ball for Abs, Pregnancy Ball with Pump Size 65cm with ring From website: 【Improves Posture & Relieves Back Pain】- Traditional pregnancy chairs keep you in the same posture for a long time. Using our birthing ball chair can improve your sitting posture, strengthen your core muscles, reduce lower back pain to encourage a healthier life 【Stability and Durability】- Our yoga ball chair is made of eco-friendly, hypo-allergenic material, rated up to 330 lbs. The base makes the ball more stable and will not roll around. The 65cm exercise ball is recommended for customers 5’ 3” to 5’ 10” in height. 【Inflation Instructions】Because it is made of PVC, the ball may be smaller than the recommended size after the initial inflation. First, inflate the ball to about 80% of the recommended size. Leave on for 1-2 days, then inflate to the recommended size. Inflate the ring base in the same way as for the ball (watch out for over-inflation). The base of the ball ring needs only 30 to 40 pumps to reach perfect condition. 【ANTI BURST & SLOW DEFLATION 】- Our ball chair is made with the honey comb structure which makes it deflate slowly and burst resistant if punctured.When being punctured by sharp objects,the ball will slowly deflate within 3-5 seconds.No abrupt explosion to significantly reduce the chance of injury.