secure fit: Reinforced aluminium pole with high-compression spring and grippy rubber feet fits the caddy securely between your floor and ceiling. I'm adjustable: Adjustable shelves slide up and down to make room for tall bottles. quick dispensing: Special cut-out holes allow you to store bottles upside-down for quick dispensing. convenient storage hooks: Hold a razor, loofah, toothbrush or other accessories. no tools needed: Just extend the caddy to install.