The innovative key to this unit is an extending ball-bearing system that allows you to smoothly pull out what you need. The system is strong enough to hold up to 100 pounds, making it a great way to hold heavier appliances that would otherwise be difficult to pull out of a cabinet. This sturdy 2-tier wire basket has a 22-inch depth to maximize storage space.It easily installs into most 15-inch cabinets with an 11.50-inch opening to simplify storing pots, pans, lids, bottles, or other kitchen supplies. To install the basket system, all you have to do is drill 4 screws to connect the base of the system to the bottom of your cabinet. All of the required mounting hardware is included. Double-check your cabinet's opening to allow the best fit. Measure side to side, front to back, and top to bottom. Double-check to make sure your product is within measurements and don't forget to take into account any obstructions.