Pronounced "Simple," the Cimple Drawer Divider has a clean, robust design that does not depend on moving parts. Available in 3 heights: 3, 4.5, and 6 inches. The Cimple Divider uses solid-wood, adhesive-backed feet to grip the walls of your drawer. The adhesive is not permanent, can be moved multiple times, and will not leave a residue on your drawers. Then, the expandable cabinet-grade plywood walls slide out to fit into the cushioned groove in the wooden feet. The feet can hold securely to your drawer walls even if the drawer box is not perfectly square. Finally, we provide a sturdy, silky smooth styrene cap to lock the divider in place and to offer a smooth top edge that is easy on your delicate items. Rather than using a spring to provide tension, you adjust the divider the way you want it and lock it in place with the styrene cap. This design allows full control of the tension, regardless of the expansion length. Tool-free installation, secure and custom fit.