Innovation you'd only expect from JA Marketing. Our expandable Pantry Pull Out Wire Shelf is the perfect way to help organize all of those pantry products, cans, boxes, packets, bottles, receipe books, cookies, etc, in one place. Our Shelf On Rails expands to fit all spaces, small and large. Mix and Match with our Baskets. Use one shelf or as many as you need to customize your pantry for YOUR NEEDS. Expands from 12 -inch to 20 -inch. Our innovative locking mechanisms allow you to attach these perfect useful organizational shelves to your pre-existing Wire or WOOD shelving already in your pantry. Just attach locking rails(pre-existing wire shelves) or screw in screws (pre-exisiting wood shelves) expand and you're done. There is no measuring, no leveling, and no sawing required. Now there's no more bending or crouching down to get the things you need. Simply pull out the shelf to see everything from from to back, no more digging or pulling things off the shelves to find what you're looking for. Simply pull the shelf out to expose all your supplies. Long-lost items at the back of your pantry are a thing of the past. You'll find that you save money when you are not buying multiples of items you already have and discovering they were laying unseen in the back of your pantry. The Expandable Pantry Shelves will make your life easier, every day. 12-inch by 12-inch (Expands to 20-inch) by 3-inch - 8 lbs.