Each pool step features the patented Tread-Loc Support System, utilizing box beam and rigid reinforcement for each and every tread. 8" ABS Channel Support We reinforce each tread with a heavy duty box-beam, attached with a permanent high pressure heat application. Sturdy Rigid Pipe Our column supports are strong and sturdy - a 2" diameter rigid pipe. Column Pipe Snap Ring Column support snap rings hold each rigid pipe firmly in place for ease of installation. Independent Tread Support Each tread is individually supported, providing stronger reinforcement and less stress on the whole unit. Snaps Together In Seconds Foolproof assembly! So simple it literally snaps together in a matter of seconds. 3 Column Support Each 8' tread is independently supported by 3 columns for MAXIMUM SUPPORT.