Glue + self-adhesive - Stronger than normal suction cups and self-adhesive. Supports up to 10 kg. No drilling. No damage. Made of 304 stainless steel for aesthetics, quality and longevity. Stainless Steel - 304 stainless steel designed to resist daily scratches, corrosion and tarnishing. Polished Finish - A polished stainless steel finish ensures every detail of the modern look is spot on. Easy to install - wait 24 hours before using. Sticks to smooth or rough surfaces. Installation: 1. Clean and dry the wall to ensure the surface is free of dust, grease or wax. 2. Before fixing, mark the location of the product on the wall. 3. Squeeze the glue onto the metal part on the back of the product. 4. Remove the protective film from the 3M adhesive tape. 5. Hold the product at the marked position and press firmly for 5-8 seconds. Do not move the product after assembly. 6. Wait 24 hours before using the product (3-5 days will be better) until the glue is completely dry.