Yoga Ball Base 42cm for Fitness Gym Office Or Classroom Gray

2 pcs Yoga Balls base: 1 pcs Purple & 1 pcs GrayProfessional grade durable material: using thick PVC material, safe and environmentally friendly without odor, matte design, non-slip and durable.Balance and fitness: through sitting or lying posture adjustment, improve your balance, and then play a fitness effect,It can do Inflatable Donut Balls improve core strength, balance, coordination, and flexibility.Well-designed: Designed specifically for use with fitness balls to prevent the balance ball from rolling or sliding when sitting or storing. with it, you can sit down or do various balance exercises more confidently.Suitable for multi-size yoga balls: the stability ring can be securely installed on the bottom of almost any sizecolour: purple & grayMaterial: PVCsize: Outer diameter 42cmPackage Contents:2 * Yoga Balls baseOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.