The plastic back to back glider is designed with rounded uprights for less impact. It is roped with a 56" rope assembly. It is self leveling and may be used for two children. It has a 15" chain and 44" rope. It is 79" overall from the bottom of the stirrups to the top of the chain. The weight limit is 150 lbs.
To assemble take bolt out of seat. Line up the holes from the seat and the handles. Insert bolt into the holes and tighten. If your swing set has a single beam across the top, you may need to install a GS glider support. This will produce a four point mounting system. The flat piece with one hole goes on top of the beam and the side with two holes bolted flush against the beam. You will need to drill holes into the beam in order to install the bolts. The bolts should be two ½" x 3" lag bolts and the top bolt should be ½" and then whatever length your beam is. This bolt needs to go through the beam from the bottom of the beam and have a nut attached to it on the top of the beam.
Four 2 ½" hangers will go through the four end holes. The nuts should be attached on the top of the assembly with the swing hangers at the bottom of the assembly. The spring clips should be attached to the swing hangers and then attached to the glider.