🏳️【HIGH-QUALITY MATERIAL 】MARINE CITY UV-resistant rail-mounted flag staff made of 304 stainless steel with two plastic clamps, the black plastic flag pole base is designed to be rust-resistant, sturdy, and resilient in all environments, even salt water. 🏳️【 LONG-TERM SERVICE 】Its construction is strong, resilient stainless steel. The flag flutters and the flagpole is sturdy at high speeds; it looks wonderful and offers years of service. 🏳️【 EASY TO USE 】It is simple to install and move the clamps up and down to meet your flag size. It is also simple and quick to change flags. 🏳️【 DIMENSIONS 】Pole Diameter: ½ Inches (12.7mm); Length: 21 Inches (533.4mm); Fits tubing: 7/8 Inches to 1 Inches (Flag Not Included). 🏳️【VERSATILE USE 】It is appropriate for a wide range of applications. If you want to show your patriotism on US waters, you may fly the American flag everywhere you like, including gardens, homes, balconies, schools, yachts, ships, RVs, fishing boats, and so on.