This shower organizer is designed to attach to smooth, non-porous surfaces such as glass, mirrors, polished metal, stainless steel, smooth plastic boards, or ceramic tile. It should not be applied to grout lines or rough or porous textures. For a smooth start, clean the surface, dry it completely, and test the suction on a small area before full use. If you encounter initial adhesion issues, wash the suction cup, dry it with a hair dryer, and re-test on a clean glass surface. When mounting, remove the protective cover, press the board firmly against the surface until you hear a light release, and hold for a moment. The cup is designed to be removable without leaving marks, allowing height and position adjustments as needed. The suction cup features TPE around a bionic octopus-tentacle design and an ABS plastic hook that resists weathering and aging, enabling operation in a wide range of temperatures. A thickened plastic body supports up to ten kilograms and provides stable, long-term mounting on compatible surfaces. The rack is crafted from stainless steel to resist rust and offers near-continuous drainage with vents that promote airflow and water runoff, helping items dry between uses. Two large hooks accommodate razors, towels, brushes, or other shower accessories, making it suitable for bathrooms, kitchens, RVs, or similar spaces. Color: Black.