TUB & SHOWER GRIP BAR installs for added safety—just push lever to activate the super grip suction cups! Position on tub rim or shower wall and you’ll have a helping hand where you need it most. Just release the lever to reposition. Won’t mar surfaces. Works on tile, porcelain or fiberglass. Sturdy plastic. Two sizes: 12 L x 3¾ diam. and 16 L x 4 diam.