65 cm? Who said there are no more than 53-54.

So the re-measurement turned out, firstly, that it reaches only about a 53-54 cm diameter and not as advertised "65" cm. Since missing the 12 cm. When setting Then we may at about 70 Kg, like pull again loosely over 10 cm.
Is on no case a ball, because you can inflate hard, let should. Then it makes namely really bum,
as some have described here. Therefore, a great 75 to 85 exercise balls, as they all do not keep in premium quality dimensions.

Material mediocre at 2.5 - 3mm thickness. So should not be used for outdoors.
Highest such balls is interior, with a level surface or carpet. Otherwise you should buy other balls.
The standard price of more than thirty euro is not justified here.
More than 20, since the material does not differ in size, equivalent of its 9 to 20 euros, same size.
Only the brand is once again sold expensively, rather than the quality. Adidas disqualified for years even.
And to blame are not the pirates certainly. Stands on the ball itself: Made in China.
But what is nowadays not produced in foreign production cities.
China can such products therefore be no guilt.

Boss, I would like to mention time that exercise balls that have thicker material are not suitable for permanent seats,
because body heat can otherwise deform the material to the egg. And Thinner balls not quite as fast, but there are just balls, the material should be moved and is therefore not suitable as a couch potato substitute. He prefers an ordinary chair with seat ring.

To smell, of course, these balls smell slightly plastic, also this one. Pregnant should before reviews to exercise balls posts, maybe think in general the fact that their sense of smell would be pregnancy, the 4x times higher than normal.
Depending on environmental and genetic factors such as hay fever, etc.