[Powerful Suction]: 18 black PVC suction cups complete with M6 screws locknuts, featuring a super strong adhesive design that securely attaches to various smooth surfaces such as glass, walls, doors, porcelain, and car windshields, with a weight capacity of 2.2lbs [Thick and Sturdy]: Measuring 5.5x2.85cm/2.16x1.1inch, the thickened suction cups for glass are sturdier and more sturdy than regular ones, ensuring long-lasting stability and reliability [Screw Fixation]: Each heavy duty suction cup comes with a screw and thread, allowing easy installation in desired locations, enhancing stability and safety, and preventing slipping or falling of items [Easy to Install]: In order to avoid deformation or poor results of the suction cups during transportation, soak them in 100°C hot water for about 6 minutes. Next, when the sucker holder is back to its state and dry, press the sucker suction pad forcefully onto a smooth, clean surface to install them [Widely Used]: These window strong suction pads are versatile, suitable for securing license plates to the inside of windshields, holding car sunshades, attaching decorations to windows and walls, and hanging bathroom towels, thereby enhancing convenience and organization in your life Colour:Black Material:plastic Package Contents: 18 x black PVC suction cups