Description: INCLUDES - 1 hanging chair swing spring, 1 pin and plug, and 1 bearing. The spring and U-pins are made of steel, surface-treated with paint, rust-proof and corrosion-resistant. Upgraded bearing set - The BEARING is made of steel and has great wear resistance, high temperature resistance, and high hardness. It can effectively increase lubrication and reduce noise. The spring can absorb vibrations when shaking, play a buffering role, increase the chair's lifespan, and make it more comfortable when shaking. WIDE APPLICATION - For use with almost all hanging chairs, egg chairs, porch swings, freestanding swings, hammocks, and hanging chairs. SAFER SUSPENSION - With a load capacity of more than 227 kg (500 pounds), the spring can meet the daily use for most families, which is consistent with the load capacity of common egg-shaped hanging chairs. EASY TO USE - You can see the picture for the installation sequence, the clevis pin passes through the support and connects to the spring. You can install it or replace existing ones with it in minutes. QUALITY GUARANTEE - Every product has been carefully checked before packaging. Satisfaction guarantee. If for any reason you are not completely satisfied, you can ask for a replacement or full refund, no questions asked.