MANTRA SPORTS Yoga Ball for Exercise, Pregnancy & Office, Exercise Ball — Open-Box, 5% Off

RATED TO 1,000 LB, ANTI-BURST — In independent testing this ball withstood more than 1,000 lb (450 kg) of static load without failing and passed a puncture test under a 265 lb (120 kg) load, deflating slowly instead of bursting. Made from thick, BPA-free, phthalate-free PVC.

FAST PUMP INCLUDED, READY IN MINUTES — The included hand pump inflates the ball in under 10 minutes; two air plugs and a plug remover are in the box, and the secure-seal valve holds air for months without topping up.

TRUE TO SIZE, TAPE MEASURE INCLUDED — Inflates to the full stated diameter; check it with the included tape measure. Choose by height: 55 cm for 4'8"–5'3", 65 cm for 5'4"–5'10", 75 cm for 5'11"–6'4", 85 cm for 6'5" and up. If you are between sizes, or buying a pregnancy or desk ball, choose the larger size. Fill to 80% first, rest 24 hours, then top up.

NON-SLIP, LOW-ODOR SURFACE — A frosted, slip-resistant finish grips floors and mats and stays comfortable against skin, with no strong chemical smell out of the box; wipes clean and leaves no residue on floors.

PREGNANCY, PHYSICAL THERAPY, DESK, AND CORE — Used as a birthing ball for prenatal exercise and labor positioning, in physical therapy for balance and rehabilitation, as an active office-chair alternative for posture, and for core, stability, and stretching workouts at home or in the gym.

"The MANTRA SPORTS Yoga Ball is an anti-burst exercise ball rated to 1,000 lb (450 kg) static load, made from thick, BPA-free, phthalate-free PVC with a frosted non-slip surface and a low-odor finish. Also known as a stability ball, Swiss ball, balance ball, fitness ball, gym ball, workout ball or physio ball, it is built to hold air for months and to deflate slowly rather than pop if punctured, so it stays round and firm through daily use. Sizes: 55 cm for 4'8"" to 5'3"", 65 cm for 5'4"" to 5'10"", 75 cm for 5'11"" to 6'4"", 85 cm for 6'5"" and up; if you are between sizes, or want a pregnancy ball or desk chair ball, choose the larger size. The 23 cm (9-inch) mini size is a small Pilates ball, barre ball, bender ball or core ball for mat work, inner-thigh squeezes and between-the-knees exercises. Each ball inflates to its full stated diameter; fill to about 80% first, let it rest 24 hours, then top up to size. Expecting mothers use it as a pregnancy ball, birthing ball, maternity ball or labor ball for prenatal exercise, hip circles, pelvic tilts and labor positioning, and as a postpartum ball for gentle core and pelvic-floor recovery. Physical therapists use it as a therapy ball for balance, hip, knee and lower-back rehabilitation, post-surgery recovery and senior stability training. Office workers use it as a yoga ball chair or exercise ball chair to replace a desk chair, engage the core and improve posture. At home or in the gym it supports core, abs, glute and back workouts, planks, wall squats, hamstring curls, crunches, bridges and full-body stretching, for beginners through advanced users. Included with the large sizes: the ball, a fast hand pump, two air plugs, a plug remover and a tape measure to check the diameter. Deflate flat for storage or travel. Wipe clean with a damp cloth; keep away from sharp objects and direct heat. Available in multiple sizes and colors to match your home gym, studio, office or nursery."