General description These screw suction cups are designed for versatile hanging solutions. With a diameter of approximately 40 mm, they are compact and easy to carry, making them ideal for various applications while saving space and keeping areas tidy. Made from strong and waterproof PVC plastic, these suction cups are durable and resistant to yellowing or deformation, ensuring long-lasting use. Technical specifications Quantity: 20 suction cups Diameter: 40 mm Material: Insulated PVC plastic Metal screws: Stable and reliable Installation Clean the surface of the target area before use. Press the suction cup onto a smooth, dry surface to expel air. For hanging, screw the knurled nut into the suction cup to secure objects. To remove, peel the suction cup off the edge without leaving marks. Usage These suction cups are suitable for most smooth, flat, and non-porous surfaces, including glass, mirrors, refrigerators, doors, metal, and tiles. They can be used for attaching signs, acrylic