SmarterLife PRO MAX Workout Exercise Ball for Fitness, Yoga, Balance, Stability, or Birth Ball for Pregnancy and Labor, Great as Yoga Ball Chair for Office or Home Gym Equipment

Good for the back

Cambié mi evaluación de 2 a 5 estrellas, pues "SmarterLife Products" al leer la reseña se comunicó y solucionó el problema, es de los pocos vendedores que se preocupan realmente por sus productos, totalmente recomendable comprar sus artículos pues los respaldan, seguramente volveré adquirir en un futuro cercano esta pelota o cualquier otro producto de este vendedor. De nuevo reitero, su atención a clientes es excepcional. Evaluación original: "El producto no es lo que esperaba, la calidad no es la adecuada a mi parecer, dudo volver a adquirirlo. Por cierto la cinta que trae para mesurar las dimensiones de la pelota inflada, no es para nada igual al de la fotografía de la publicación, sólo te llega una cinta negra sin ningún numero y con un orificio de cada lado. Sospecho me llegó un producto usado."

I originally ordered the 75cm ball because I'm 6'4" and that's what the chart suggested, but is was too big for my needs. I wanted to use it for core and back exercises, as well as sit on it at my work desk. I felt like the 75cm was just too tall for any of this. I tried back extensions and crunches and both were just awkward and felt unnatural. I then tried sitting at my desk and I couldn't stabilize very well as my feet weren't planted firmly on the floor. I worked with the seller and they offered to swap the 75cm with a 65cm, which I'm happy to report is much better for what I'm using it for. It is just a little too short to sit at my desk comfortably, but I could try adding a little more air to the ball. My legs are bent just below 90 degrees, so maybe a couple inches in height would help me. It's important to note that I weigh 350lbs, which is most definitely causing me to sit lower than someone who weighs less, so keep that in mind. The tape included is very nice when pumping up the ball. The pump itself is not so nice, especially when pumping up the 75cm beast. The handle on the pump is much too small to hold onto comfortably. I ended up using an electric pump to safe time and energy. The hand pump will do the job, but it's a chore. Overall I'm happy with this ball, it's made very well and I feel confident on it even at my weight. I hope this review can help others decide what size ball to get.

If you're looking for a high quality exercise ball, this is the one! I've ordered a few over the years for home, office, cabin, etc and this one is the best yet--by far!! Color actually matches the product pics and the instructions for inflation and use are the best I've ever seen! And the ball wall feels very thick and solid. In addition to the pump, inflator valve pins and removal tool, they also provide a plastic belt to put around the ball to show you when it's properly inflated to the correct size--genius! In addition to all that, they also give very clear instructions and a customer support number to call if you have any questions or problems. And, a very nice exercise guide that shows multiple ways to use the ball for stretching and exercise. Can't recommend this product and company more highly--every Amazon vendor should strive to be this good!!

muy buen material, se ve resistente y buena tracción