If you have ever gone to a friend’s house and they had one of those big exercise balls lying around, you may have wondered whether these things actually even work. But it is better to actually research for yourself than to automatically assume that they do not really work. And when you do some research on the GoFit ball, you just might be surprised by what you turn up!First off, you need to know that not all exercise balls are created equal; there are companies besides GoFit that make these exercise balls, and some of these other ones have a tendency to pop easily or to become sticky over time. The GoFit is the premier exercise ball, and it is extremely durable, with no stickiness or odor! What’s more, you can get a GoFit ball without spending a whole bunch of dough; for instance, the 65 centimeter GoFit ball – along with a 25 minute instructional DVD – costs only $33 (@@AMAZONTEXT;B0007W2F7W;and it is only 24 dollars if you shop for it on Amazon@@!). If you decide to buy a GoFit ball, keep in mind that you should judge what size is right for you based on the length of your legs, rather than based on your actual height. This is important to keep in mind, as GoFit tells you what size you should buy based on height, but you should adjust this appropriately if you have long or short legs for your height. So then, the question becomes: “All right, it’s inexpensive, sure – but does the darn thing actually work?” The short answer to this question is: If you use it correctly, on a regular basis, it absolutely works! You need to keep the ball inflated to the proper size (it comes with an air pump as well) and use it several times per week; if you do this, you will significantly strengthen your core. Furthermore, if you have had back problems – even if the back problems have been severe – the GoFit can improve your back! For a minimal price, you can have a fun, easy workout that actually works; the GoFit is well worth the small investment, as you will surely see if you buy one yourself! @@AMAZONWIDGET;GoFit;1079730@@.