The reception was quick, delivered in an envelope (correct for this kind of purchase) Packaging tools and not according to the photo. They are in a clear plastic bag with a white background that seems to be fairly rigid with plastic thermoformagée closure. So as better because they do not baladeront separately. Very well on this.
I have not tried them out yet but it appears to be useful but not resistant! I hope not to have to tinker every day my iphone ... but hey, for the screw size and strength of tightening, I trust that it will go :)