Mutual Industries Snow fire hydrant marker measuring 3/8" x 7' is made of fiberglass rod and heavy-duty stainless steel springs for long lasting durability. Mutual Industries Snow fire hydrant marker featuring highly visible reflective fiberglass rod easily attaches to fire hydrants to ensure that emergency crews can locate them at night or in the snow. Marker offers an in-built UV protection. • Fire hydrant marker. • 3/8" x 7'. • Material: Fiberglass rod and heavy-duty stainless steel springs.