[Functionality Meets Style]: With a super sticky silicone base and advanced vacuum suction technology, these hooks deliver strong, reliable support. Simply turn the knob clockwise to eliminate air and maximize suction power. Each hook can hold up to 15 lbs | [Hassle-Free Installation]: Say goodbye to unsightly wall damage! With a simple Twist & Lock mechanism, installation is quick and effortless. The hooks are removable and repositionable, leaving no marks or residue behind | [Effortless Setup in 3 Steps]: 1. Choose and clean a smooth, non-porous surface. 2. Loosen the hook counter-clockwise. 3. Press the base against the surface and twist the hook clockwise until fully tight. Watch our video for detailed instructions | [High-Quality Material]: The towel hooks are made of high-quality stainless steel, while the suction cup is made of a super sticky silicone base (Washing the suction bottom can be used repeatedly). They are rustproof, waterproof, and easy to clean with just a damp cloth | [Application Surfaces]: These suction cup hooks are suitable for Glass, Mirrors, Glossy porcelain tiles, Acrylic, Plastic, Smooth stainless steel, Quartz, Laminate, and other smooth and non-porous surfaces