If the surfboard leash has more functions, what do you hope

[Drache]

Maybe it have a compass ？

[jaffa1949]

Weird, interesting , why?

[BaNZ]

Weird, interesting , why?

A compass if you're Laird Hamilton and decide to paddle to a different continent.

[jaffa1949]

A lump in a leash tangled and strangled, muscles debrided!

[oldmansurfer]

Shark repellent and emergency air supply

[billie_morini]

Rather than hope, in reality it functions as a:
1. dog leash
2. clothes line and, once upon a time, wire for drying art prints
3. wee kids' jump rope
4. tie down rope in cargo area of SUV

[Drache]

Weird, interesting , why?

can go home ?

[Drache]

Shark repellent and emergency air supply

Is this really useful?

[jaffa1949]

There are electric shark repellent leashes,

[oldmansurfer]

Shark repellent and emergency air supply

Is this really useful?

Oh! we have to be useful? I guess I won't post the one I was thinking of that takes gold out of the saltwater so you make money while you surf. The shark repellent would be useful as well as the air supply but the air supply on a leash not useful unless you can figure out a way to run a line from your ankle to your head area and not get in the way isn't going to work