Make the most out of every square inch of your kitchen space with the Rev-A-Shelf 3" or 6" Cabinet Base Pullout Organizer Rack. With Rev-A-Shelf's cabinet insert, the otherwise wasted area between base cabinets transforms into valuable storage space. This pullout shelf is intended to be installed in full-height cabinets and can be trimmed down to 26.375"H for custom cabinets. The full-extension ball-bearing slide system glides easily while the adjustable shelves allow you to customize your space. The package contains (1) wood filler and (2) adjustable shelves with chrome rails and mounting hardware. The bottom shelf is fixed. 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 to make sure your product is within measurements, and don't forget to take into account any obstructions (plumbing, hinges, etc.).