This rugged step is made from maintenance free polyethylene and it will fit any above-ground pool up to 54 in. The Capri Ladder is designed to meet or exceed all SNIP standards for safety and swimmer entrapment. The unit is easy to assemble and can accommodate up to a 300lbs swimmer. ***NOTE: THIS LADDER IS DESIGNED FOR USE WITH TRADITIONAL ABOVE-GROUND POOLS WITH FLAT RAILS AROUND THE PERIMETER. THIS LADDER WILL NOT WORK WITH TUBULAR FRAME POOLS SUCH AS INTEX, BESTWAY, COLEMAN, SUMMERWAVES, ETC. IF YOU HAVE QUESTIONS ON WHETHER THIS LADDER WILL WORK WITH YOUR POOL, PLEASE CONTACT US BEFORE ORDERING.***