The Flexible Flyer Burgandy Rocket Rider Tandem Swing Assembly has two pairs of 36″ covered adjustable chains. It is made of steel and plastic for strength and reliability. This Flexible Flyer swing is made for children 3 to 8 years old. The manufacturer uses the latest cutting-edge technology to speed up the process and increase the durability of the apparatus. This swing set component is a fun add on to your existing set. It can be used by a single rider or two can enjoy it at the same time. The maximum weight limit is 81 lbs each rider. Troxel has gained a reputation for manufacturing the highest quality by using latest techniques and equipment. They offer value and durability by using welded steel tubing and fabricated components.