This flagpole holder is designed to securely mount your boat flag on various pipe surfaces onboard your boat. It is constructed to easily clamp onto pipes with a diameter of 1.05 inches (approx. 26.7 mm), making it suitable for standard railings or similar installations. The holder is adapted for flagpoles with a diameter of 0.75 inches (approx. 19 mm), ensuring that your flagpole sits stably and securely, even while sailing. Perfect for displaying your flag, whether you are out on the open sea or enjoying a quiet day on the lake. This boat accessory provides a simple and functional solution for displaying your flag.