The Swing-Mate is a heavy-duty, barrel shaped porch swing spring, approximately 2” in diameter, and 8-1/2” in length. It is manufactured in the USA from the finest materials available, with zinc plating and clear coat to provide additional protection against the elements. These springs can also be used with hammocks and come with instructions. Swing_Springs$22.95 When you see this question: "Would you like Yahoo! to send you an email asking you to rate this merchant?" on the Payment portion of the order form, put a bullet in front of "Yes". When you receive that rating email, complete it and send it in. It takes only 2 minutes and it's very helpful for us so that we can continue to provide the best products and services possible. Copyright © 2005 Porch, Patio and More. All rights reserved.