With the BabyDan Pet Square Pen, you can easily keep your four-legged friend safe at home and give yourself peace of mind. You can open the gate from both sides with one hand so you can easily access the pen. You can extend the pet pen with as many sections as you want to fit your home and needs. You can purchase both small and large sections separately. The pet pen is so flexible that you can convert it into a pet gate if needed. As a pet gate, it’s ideally used around a fireplace, in a wide and irregular doorway or staircase, or as a room divider.