
Why blue? However. I bought them to hang wreaths on our glass doors. I cleaned the glass well with Windex. Then I cleaned the places where these hooks went with rubbing alcohol. One was fine right where I posted it. The other slides down a bit. I keep putting it on, but after two or three days it sinks a few inches and I have to throw it away. I tried cleaning the suction cup and glass again but the suction cup must be broken.

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