Product details:

Powerful suction and comfortable grip provide stability and support in the shower Generous, soft gripping surface for comfort and control, underside of bar is non-slip for a secure grip, even when wet Size and distance between suction cups designed to accommodate a variety of tile patterns Large, contoured installation levers for easy use - no tools required. Securely attaches to tile, glass and other smooth, non-porous surfaces. For best results, use on smooth glazed surfaces, mirrors or glass. Not recommended for use with textured or porous surfaces including some stone, acrylic or metal.