So there was actually 3 HDMI cables short (90cm) which I used to replace all those I had in my Home Theater - TV - various consoles, which were too big for my installation. The fact that they are all compatible Ethernet / 3D / 4K is really nice.
The 4th and final cable is larger (3m) and may, for example, allow you to connect the PC to the TV (or tablet ... or other ...).
In addition to this, is added 3 velcro fasteners good, one (or more) cloth (s) for cleaning, adapter for 90 ° corners where the wall would be too close (haha).
Finally, the little gadget: a mini flashlight key chain with a really light output at the top.
Anyway ... very happy with this useful and economical purchase!