A. Odorless and environmentally friendly: Made of PVC material, it is non-toxic and harmless. The suction cup hook has good quality, is relatively durable and environmentally friendly, and has waterproof performance. B. Strong suction without leaving marks: It generally won't leave stains on the wall or glass. The 70mm vacuum suction cup is larger than many hooks on the market, with strong supporting force and an anti-freezing function, which can help prevent the suction cup from hardening due to temperature changes. C. Tool-free installation: Using the vacuum principle, it can be easily installed without damaging the wall. Just pull down the hook and press the middle of the suction cup to expel the air. Note: The hook usually adheres well to both smooth and non-smooth surfaces, but may not be suitable for mosaic or slightly textured terracotta surfaces. Please ensure the surface is suitable before purchasing. D. Wide range of uses and reusable: After cleaning the suction cup and wiping the wall, the hook can be removed at any time, relocated, and reinstalled. It is quite suitable for hanging Christmas decorations, bathroom and kitchen items, such as wreaths, door signs, bathrobes, tea towels, cheese baking pans, etc.