This shower grab bar is specially designed for seniors, utilizing materials that are ideally suited for smooth and non-porous surfaces such as tiles, marble, glass, wardrobes, and metal surfaces, ensuring a stable installation. Uneven or textured surfaces may compromise the suction effect of the cups, so please ensure the wall is dry and free of water stains before use. The diameter of the grab bar is 5.1 inches, and the diameter of the installation location must be larger than this to guarantee a secure fit.Featuring a safety and anti-slip design, the unique red safety line allows you to check at any time whether the product is in optimal working condition. Once the red safety line appears, simply press the air pump a few times until the red line disappears, restoring it to a safe state for use. With a maximum load capacity of up to 418 pounds, it is particularly suitable for seniors, pregnant women, disabled individuals, and others with limited mobility. However, please note that the grab bar is only intended for assistance and support; it is not recommended to rely solely on it to bear the full body weight.Easy to use, it requires no drilling for installation. A small rubber tag at the bottom allows for easy removal with a gentle pull, leaving no sticky residue and making it reusable. It is widely applicable in bathrooms, bathtubs, showers, toilets, and can even be given as a birthday gift. Color: White. Material: Acrylonitrile Butadiene Styrene (ABS).