high impact polymer railings are made of specially formulated compounds to ensure longevity and unparalleled resistance to the elements UV and chemicals while requiring virtually no maintenance. Ring Rails contain reinforced encapsulated steel which provides superior strength and durability. A high impact polymer exterior ensures rails are unaffected by pool chemicals salt and sun and remain cooler to the touch. No grounding or bonding required. Pretzel Rails. Core-drilling and grouting is the only recommended installation method for the ring rail as it installs at an angle. Due to the angle of the rail standard escutcheons will not fit the base. This rail is only recommended for new decks where the surface can be matched to the edge of the rail after it has been installed otherwise the grout around the base will remain visible. Features . Tubing - 1.90 in. OD.. Wall Thickness - 0.25 in.. Bends - 6 in. Radius.. Dimension - 29 W x 19 H in.. Color - Gray.. Shape - Ring Rails.