Rev-A-Shelf's fillers revolutionized otherwise wasted space in your kitchen. Normally a "filler" or extra space is simply covered up with a decorative front for either your wall (upper) or base (lower) cabinets, but with Rev-A-Shelf's line of fillers, it turns that otherwise wasted space into usable space. Fillers are intended to be installed in-between two (2) cabinets in new kitchen cabinet construction and will not work in existing kitchen cabinets. Fillers are available in different widths and heights. (It is always good to consult with a kitchen designer to incorporate into your new kitchen) Features: 3-piece zinc plated soft close full extension ball-bearing slide system Once installed simply attach your matching panel or door Fillers do not go inside of a cabinet, they install in-between cabinets Designed for exactly a 6" x 30" opening Fully assembled maple wood construction for durability Covered by Rev-A-Shelf's limited lifetime warranty Specifications: Depth: 23" Height: 30" Width: 6" Includes: One (1) wood towel bar filler Two (2) adjustable towel bars One (1) shelf with chrome rails