Package includes:1 PCS heavy duty hanger spring.Dimensions: Hanging chair spring length is approx 108mm(4.25") , diameter about 1.5", steel thickness about 0.27"(7mm)
Can support most hold up to 700 pounds
This porch swing spring is Galvanized high-carbon steel Wire spring coil, Sturdy and Anti-corrosion
The hammock spring will absorb the shock and preserve the longevity, Reduce noise, vibration and stress
The spring locates between the overhead support and swing chain to provide a more comfortable, softer feel to porch swings, free-standing swings, hammocks and hammock chairs