What is so great about Kettler Swing Sets? Well, for one thing, reputation. You can trust that Kettler builds a strong, durable swing set. Just look at the swing set designs offered by Kettler. These swing sets are available in several designs with glider swings, surfboards and gondola. Safe play without compromise. The KETTLER Swing set is recognized for its uncompromising quality and safety by the leading German Testing Institute. Our swing set is designed to be safe, sturdy and reliable. Four ground anchors firmly secure the swing into place. High impact resin seats with adjustable ropes ensure a perfect swing every time. Strong, powder coated steel frame finished in primary vibrant colors. KETTLER utilizes the highest carbon steel that will not bow with use. Special double coated polyester power coat finish that is warranted for 3 years against fading.