Improvised out of an old fire alarm, a piece of bike tire, a socket, metal wire and some screws. Tested on the field, it stays in place thanks to the the built in strap and produces a nice and clean bell sound, 100% reclaimed & repurposed materials!
Improvised out of an old fire alarm, a piece of bike tire, a socket, metal wire and some screws. Tested on the field, it stays in place thanks to the the built in strap and produces a nice and clean bell sound, 100% reclaimed & repurposed materials!