Only a rubber band

It is spoken much of the positive effect of this band, so for me 35 years old, man, this band is 08/15 only fashionable eye-catching, but for 40 euros !!!!!
One notices neither sports nor in the work some of this thing.
Wear it for 2 weeks and the lettering has been going down, it would prefer to no longer back end but after 2 weeks (for testing) is unfortunately ......