Includes: - 1 hammock chair swing spring - 1 pin plug hardware set - 1 bearing Features: - Spring and U-pin plugs made of steel with baked paint finish, rust-proof and corrosion-resistant. - Upgraded steel bearing offers wear resistance, high-temperature tolerance, and durability for smoother, quieter operation. - Spring absorbs vibrations, enhances comfort, and extends chair lifespan. Compatibility: Fits most hanging chairs, egg chairs, porch swings, freestanding swings, hammocks, and hammock chairs. Safety & Strength: Supports over 500 lbs, matching standard hanging chair weight limits. Easy Installation: Follow the included guide��quick setup or replacement in minutes. Quality Assurance: Each item inspected before shipping. Full refund or replacement available if unsatisfied.