Revolution wasted space in your kitchen with the Rev-A-Shelf Base Filler Pull-Out Between Cabinet Organizer. Normally a filler or extra space is covered with a decorative front but Rev-A-Shelf s line of fillers turns that otherwise wasted space into a functional storage area. Fillers are intended to be installed in new kitchen cabinet construction and will not work in existing cabinets. This model is a 3-inch wide design and features adjustable shelves with chrome rails and full-extension ball-bearing slides. This package contains 1 wood filler and 3 adjustable shelves with chrome rails. Double-check your cabinet s opening (inside dimensions) to allow the best fit. Measure side to side (width) front to back (depth or length) and top to bottom (height). Double-check your product is within measurements and don t forget to account for any obstructions (plumbing hinges etc.). Capitalize on unused kitchen cabinet space with the Rev-A-Shelf 3-Inch Base Filler Pull-Out Cabinet Organizer.