In the catalogue of Fox, we find the float Marker Float.

The floating Fox Marker Float is the floating marker's most advanced designed to reach great distances, and it has a body obtained by mold and composed of two parts, welded chemically to provide a large buoyancy.

With a plastic construction highly resistant to impact, with flexible fins to ensure a long lifespan of the product, if you are a fishing enthusiast, you can not have the float Marker Float.