The Saftron Inground 3 Step Ladder is made of high impact polymer with specially formulated compounds. This ensures longevity and extreme resistance to UV rays and pool chemicals such as; chlorine, acid, and salt. This ladder requires very little maintenance. The frame is reinforced with encapsulated steel which provides superior strength and durability. As the reinforcing steel core is completely encapsulated, it does not come into contact with air or chlorinated pool water so it is immune from rust or corrosion. This pool ladder comes as an easy choice for most retrofit installations, as there is no digging-up to install any grounding cables.