Includes: 1 hammock chair swing spring, 1 pin sleeve, and 1 bearing. The spring and cap are made of steel with a painted surface for rust and corrosion resistance. Bearing Upgrade Kit: The bearings are made of durable steel, resistant to high temperatures and hardness. Effectively increases lubrication and reduces noise. The spring absorbs vibrations during swinging, providing a cushioning effect that extends the chair's lifespan and enhances comfort. Wide Application: Works with nearly all hanging chairs, egg chairs, porch swings, freestanding swings, hammocks, and hanging chairs. Safer Suspension: The spring's load capacity exceeds 500 pounds, meeting the daily needs of most families and matching the load capacity of standard hanging egg chairs. Easy to Use: Refer to the image for the installation sequence; the U-shaped pin goes through the bracket and connects to the spring. Install or replace your existing hardware in minutes. Quality Assurance: Each product is carefully inspected before packaging. Satisfaction Guaranteed. If you are not completely satisfied for any reason, you can request a replacement or a full refund, no questions asked.