Survival Marker / Alpenstock

We look on alpenstock as the target point when climbing the mountain. That climbers can use Survival Marker to make sure the way climbing. Reduce the rate of dangerous and wasting resource of rescuing.
Two advantage of Survival Marker
Mark : that climbers can mark the way they went. The ingredient paint is Glycerin and food coloring. Paint will decompose naturally about ten days. This design can reach the concept of marking and environmental protection.
Tail-light:
That them know speed and direction under keeping distance. To lower the rate of getting lost.