Easy to adjust: The Marine Flag Pole includes a practical black clip that makes it easy to adjust to the size of the mast bracket. durability: Built to withstand sea weather, this flag pole is strong, durable, and rustproof, made from quality metal. Double holes: Designed with double holes on the pole to keep the flag flying in the wind without tangling. Convenient to install: Easy to install and use without professionals; suitable for round or square railings and easily mounted to yacht rails. Use scenarios On small boats or dinghies during docking or day cruising, install quickly and adjust to the rail size for reliable flag display. On yachts or larger sailboats with round or square railings, mount easily to rails to keep the flag visible during voyages or regattas. At marinas or on boats during events, display your flag securely on the railing without risk of tangling or rattling in the wind.