VIAHART Heavy Duty Barrel Shaped Spring for Porch Swings, Free-Standing Swings, Hammocks and Hammock Chairs | XL | Pack of 1 Sturdy steel construction, wire diameter 7 mm, holds up to 500 lbs! For use with almost all hanging chairs Easy to setup and take down of swings, hammocks and hammock chairs SIZE AND WEIGHT | Product Measures 9 x 1.8 x 1.78 in inches | 22.9 x 4.6 x 4.5 in centimeters | Product Weighs Approximately 1.6 lbs / 0.8 kgs | These dimensions and weight do not include the packaging 30 day no questions asked return policy and FREE returns!