--- product_id: 135314900 title: "Gregster Excercise Ball - Sitting ball - Suitable as a Fitness Ball, Gymnastic, Yoga Ball or Pilates Ball" brand: "gregster" price: "FREE" currency: JPY in_stock: false reviews_count: 7 url: https://www.desertcart.jp/products/135314900-gregster-excercise-ball-sitting-ball-suitable-as-a-fitness-ball store_origin: JP region: Japan --- # Gregster Excercise Ball - Sitting ball - Suitable as a Fitness Ball, Gymnastic, Yoga Ball or Pilates Ball **Brand:** gregster **Price:** FREE **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Gregster Excercise Ball - Sitting ball - Suitable as a Fitness Ball, Gymnastic, Yoga Ball or Pilates Ball by gregster - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/135314900-gregster-excercise-ball-sitting-ball-suitable-as-a-fitness-ball) ## Best For - gregster enthusiasts ## Why This Product - Trusted gregster brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description The Gregster exercise gym ball is available in three different sizes. Use the ball to strengthen your muscles through specific exercises, gymnastics, Pilates or yoga or use the ball in daily sitting to strengthen and protect your back muscles in the long term. The fitness ball can be used in many ways and pays for itself through its daily use. ## Features - About this item - Versatile in use. For fitness training, Pilates, yoga, gymnastics and aerobics. Ideal for training the stomach, legs, buttocks and back muscles - Ideal for rehab programs and post-pregnancy exercises. Exercises with the gymnastic ball increase your mobility. - Perfect for use anywhere. Whether at home or at work whilst doing paperwork. After a short time you will experience a stronger back. - An easy-care fitness accessory. Simply wipe the ball with a damp cloth when the surface is dirty or after sporting activity. - The Gregster gymnastic ball is available in three different sizes. Follow our recommendation and buy your ball in the right size to get the maximum out of your workout. ## Images ![Gregster Excercise Ball - Sitting ball - Suitable as a Fitness Ball, Gymnastic, Yoga Ball or Pilates Ball - Image 1](https://images-na.ssl-images-amazon.com/images/I/91H3jnjMkFL.jpg) ![Gregster Excercise Ball - Sitting ball - Suitable as a Fitness Ball, Gymnastic, Yoga Ball or Pilates Ball - Image 2](https://images-na.ssl-images-amazon.com/images/I/91P%2BCAdGMuL.jpg) ![Gregster Excercise Ball - Sitting ball - Suitable as a Fitness Ball, Gymnastic, Yoga Ball or Pilates Ball - Image 3](https://images-na.ssl-images-amazon.com/images/I/918GRH7aHBL.jpg) ![Gregster Excercise Ball - Sitting ball - Suitable as a Fitness Ball, Gymnastic, Yoga Ball or Pilates Ball - Image 4](https://images-na.ssl-images-amazon.com/images/I/81m-Lg8vzfL.jpg) ![Gregster Excercise Ball - Sitting ball - Suitable as a Fitness Ball, Gymnastic, Yoga Ball or Pilates Ball - Image 5](https://images-na.ssl-images-amazon.com/images/I/61v13RwRQVL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ SUPER POWER FISTBALL 2000X!!! *by L***R on Reviewed in the United Kingdom on 10 September 2018* OK, I know this isn't the intended use for this but.......my sons and I invented a sport which they named SUPER POWER FISTBALL 2000 X and we haven't stopped playing since we came up with it! It is essentially a form of volleyball but requiring heavy double-fisted punches to send the ball over a goal post at our local park (it is allowed to bounce between hits, younger players can wear boxing gloves....we're still ironing out some of the rules). It is a lot of fun and fantastic exercise! So while I can't review some of the traditional uses of this ball, I can tell you that it is incredibly durable and has put up with a remarkable amount of abuse with no signs of wear. It also doubles nicely as a seat when you are too exhausted from your last bout of SUPER POWER FISTBALL 2000 X! I can't wait to finish work today and get back down to the park for another bout. I highly recommend picking one of these babies up now so you can start training for when SUPER POWER FISTBALL 2000X becomes an Olympic sport. ### ⭐⭐⭐⭐ Yes *by C***S on Reviewed in the United Kingdom on 18 November 2018* Whatever you do, don't throw away the little white sticks!!! They are the plugs that keep the air in the ball. I find this rather odd, as one usually has a plug attached to the mouth piece, but not with this.Although one is supposed to be able to inflate the ball using a bicycle pump, I don't see how that is possible as the ball does not have an exterior mouth piece, as it were. Therefore, I would recommend getting a battery operated air pump as they are much faster and require less energy and they have all the necessary accoutrements for almost anything that requires air pumped into it.I received the blue ball. It is smaller than I expected, but it should serve me well enough once it is fully pumped up. I have pumped it up once, but it will require further air put into it as the ball expands to its full capacity over time. For now, it bounces well! Beyond that, having never really used such balls or bought them, I am unable to judge by comparison. The price appears to be right and the quality good as it is quite thick. How long it should or will last I don't know. I suppose that depends on how much I use it. ### ⭐⭐⭐⭐⭐ As good as the exercise balls at the gym *by H***N on Reviewed in the United Kingdom on 30 August 2018* I sometimes use an exercise ball at the gym to do crunches. Having the extra bit of wobble from being sat on the ball supposedly activates my core muscles more. I sometimes also do push ups with my feet on the ball - again the instability of the ball is supposed to engage more muscles.I'm currently using this ball at home in my office. When sitting in an office chair, I tend to slump and have quite poor posture. Sitting on this exercise ball means that I am forced to use more of my core back and stomach muscles to stay upright - so hopefully this will help me to be a bit stronger and more toned in the future.Please note that the ball does NOT come with a pump. You will need a standard bicycle pump in order to be able to inflate it.Overall, the ball is as good in quality as the ones that my gym provides. So I think it should last a long time. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/135314900-gregster-excercise-ball-sitting-ball-suitable-as-a-fitness-ball](https://www.desertcart.jp/products/135314900-gregster-excercise-ball-sitting-ball-suitable-as-a-fitness-ball) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-19*