The SĀFTRON Figure-4 3-Bend Return to Deck Handrail 1/4" Wall Thickness; 40" x 32"; High Impact Polymer comes in classic or fully reinforced, which contains encapsulated steel (classic model) or encapsulated aluminum (fully reinforced model) to provide superior strength and durability. A high impact polymer exterior ensures SĀFTRON rails are unaffected by pool chemicals, salt, and sun and remain cooler to the touch. No grounding or bonding is required.