To protect any boat document from humidity or even better to avoid the risk of water flowing in. A document holder that, if you like, can also be floating. We do produce it, with your adverting as well.
A floating key chain is not only a gadget: it is an advertising space as well as an object of unquestionable usefullness within this sector. Apply to Munari Materie Plastiche.
Smartphones, tablets, iPods: precious and fragile, they can fall and, at worst, they can fall into the water. Do you need a smartphone holder/protection? Nothing irreparable would happen and your advertising space on it would be assured.