General description Our suction cups are designed for easy application on smooth surfaces such as windows, glass, and ceramic tiles. They are ideal for organizing space in kitchens, bathrooms, and for DIY furniture installations. The clear knurled nut and M5 stainless steel thread provide a secure hold for various items, including toothbrush holders, shower shelves, and soap dishes. Technical specifications Diameter of suction cup: 40 mm Height of M5 thread: 10 mm M5 nut length: 10 mm M5 nut diameter: 2 mm M5 screw cap diameter: 13 mm Quantity: 8 pieces Installation Ensure the surface is smooth and clean using glass cleaner or vinegar before application. Press down firmly on the suction cup to create a vacuum seal. Check that the bottom of the suction cup is free of cracks for optimal vacuum effect. Attach items to be hung using the knurled nut on the suction cup. Usage Suitable for use in bathrooms, kitchens, and for various DIY projects. Can be used to hold decorations or organize