Anti-wrap design: The flag pole rings feature a 360-degree rotating anti-wrap ring that allows flags to fly freely in the direction of the wind and helps prevent the flag from wrapping around the flagpole. Material and size: Made of aluminum alloy, these flag pole rings are durable and rust-resistant for long-term use. The inner diameter of the ring is 1 inch, designed to fit a 1-inch diameter flagpole. Please measure your flagpole diameter carefully before installation. Easy to install: Simply attach the 4 aluminum alloy mounting rings to the flagpole, then connect the top and bottom grommets of the flag to the clip hooks on the rings. Adjust the position as needed. Included components: The set includes 4 clip hooks to connect the flagpole rings to the flag grommets, providing a secure attachment between the flag and flagpole for easier use. Dimensions: Inner diameter: 1 inch (2.54 cm); Outer diameter: 1.46 inches (3.71 cm); Height: 1.18 inches (2.99 cm). Color: Black Material: Aluminum alloy Package Contents: 4 x Anti-wrap flag pole rings 4 x Clip hooks Note: This package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.