Sturdy and Durable to The shower handles is made of plastic, 2 suction cups with strong power, very sturdy and durable. You won't slip even when wet, providing comfortable experience in bathroom, tub, shower and toilet handrail. NOTE: The product will work best on a flat, nontoporous surface. An uneven surface or textured surface will result in a suction cup which is NOT securely fixed. Comfortable and Non Slip Grip to Two strong shower handle design works on any nontoporous and flat surface, including tile, glass, acrylic and fiberglass. the grab bar provides additional stability when entering and exiting the tub or shower for comfortable experience.The suction grab bars for bathtubs and showers have comfortable easy to grip handles that ensure a nontoslip grip for more stable and enhanced security. Tips to The shower handle is suitable for smooth, dry and clean surface. Clean and dry surfaces thoroughly before installation to ensure smooth, nontoporous surfaces. Check the stability of the suction cup periodically. This grab bar is to be used ONLY to ASSIST and help support properly a person's body, not to stand full body weight. Use with caution and test proof the suction of cups before using it. NOTE: The grab bars can not be mounted on grout seams. Easy to Install to Shower handle is easy to install, no tools required and no drilling needed. Just flip the locking latches to secure bar in place. You can change its location according to your current need. The grab bar doesnt harm the surface its on nor leaves marks when placed right. Portable to Shower handle is portable and compact, so you can take it when you travel and easily install it in hotel rooms or guest bathrooms, take it with you everywhere you need, just push down the locking latches to firm or flip them up to release. Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you