Unit holds two (2) 5" (127mm) diameter rolls of 1500 sheet or standard toilet paper rolls. Rollers molded of high impact-resistant polystyrene plastic and two (2) are supplied. Toilet paper rolls are self-feeding on user-pull demand until supply is depleted. Rollers are spring loaded and free-rolling. Includes a 5" x 18" (127mm x 457mm) stainless steel shelf with 5/8" (16 mm) hemmed lip on front edge.