It is suitable for the elderly, the disabled, children and Pregnant woman. Tool-free installation: The grab bars for bathroom is easy to install and does not require any tools. Just open the suction cup buckle, place it on a flat and smooth surface, and then buckle the suction cup buckle to complete the installation Note: This suction cup must be used on a smooth and flat surface, such as glass fiber, smooth ceramic tiles, Guanghua marble, etc.