- The eye nuts are made of stainless steel, size M4
- the elastic cable is purchased by the meter in a DIY store, diameter 8mm, allow approximately 150cm
- A small mountaineering carabiner
the budget is 20 euros in total, this budget does not include the bottle of French wine

I haven't put one on the driver's side at the moment because I'm afraid it might be annoying when driving...
