It is 100 clear silicone, it does hold well. comes with the purchase.. so far so goodOh wow!! Well, Once they will be hanging so bad I cannot stand them anymore, i know what to buy to get it right the first time!! Thanks Al! Mine just started to hang, not too too bad looking yet.
When saying silicone, I assume it's some kind of glue? Not silicone silicone as in caulking right? Just curious.