The length and height of this shelf can be adjusted, The length of expandable shelf can be adjusted from 13.9 to 22.4 Inches according to the different space; The Height can be adjusted from 5.1 inches to 7.5 Inches depending on how you want to arrange your space.Both sides of this counter shelf have holes for easy stacking,it can be stack 2 or 3 pieces accroding to your need.Say goodbye to the chaos kitchen area! With the help of this kitchen shelf, you can save a lot of space for cooking, make your kitchen clean and neat;They can also be placed inside a cabinet closets, pantry cupboards, bathroom countertop.