The MFJ-1910 Telescoping Fiberglass Mast is 33 feet tall, yet collapses to a mere 3.8 feet and weighs only 3.3 pounds! You simply pull out each section and twist to lock. It extends to a whopping 33 feet -- a full quarter wave on 40 meters! The bottom section is 1 3/4 inches in diameter. Its great for portable and temporary use -- traveling, camping, from hotels, hamfests, field day, DX-peditions. Put up a full size inverted Vee dipole or full size vertical antenna in minutes and get full size performance! You can Use to make other antenna like loops and quads! The Telescoping Fiberglass Mast is made of super strong fiberglass flexes to resist breaking. Its black coating resists UVMFJ-1910 10m (33ft) Fibre Glass Telescopic Mast.