Wonderfully social, and suitable for both adults and children, this is an excellent accessory for attaching to any of the Caledonia swing frames. A single person can enjoy it, but it is even better with two. With all but the youngest children, no pushing is required, and they really enjoy the independence of being able to build up their own momentum. Attached to the top bar via an extraordinarily robust galvanised steel fabrication, fixed by 6 large timber bolts. Designed to fit a 5" diameter top beam.