CORNERLOCK Heavy-Duty Corner Shower Storage RackYour shower corner has been wasted space. Not anymore. "I'd already had two stick on shelves fall off in the same spot. Put CORNERLOCK up in about ten seconds, locked it in, and that was three months ago. It hasn't shifted once. Holds everything shampoo, conditioner, the kids' bottles. My husband said the shower looks like a hotel. Wish I'd found it sooner." Niamh Doyle, Cork Locks In. Stays In. Most suction shelves grip for a few days. Then they fall