Our 8-inch heavy-duty rolling gate wheel is made from galvanized steel, ensuring exceptional corrosion resistance and rust prevention for long-lasting performance. It fits for 1.57"-2.75" round gate frame.Designed to carry up to 270 lbs, this adjustable U-bolt wheel effectively prevents gate sagging and maintains balance, providing strong support for your rolling door system. With a simple wrench, even those with minimal installation experience can effortlessly install the rolling door wheel without the need for professional skills or additional tools—ensuring a hassle-free setup.This outdoor gate wheel is widely applicable for various types of doors, including metal tube gates and fences, making it perfect for residential, farm, factory, and commercial use.We stand behind our product's quality and durability, offering a reliable after-sales service to ensure your complete satisfaction with the 8-inch door wheel.