I am happy with the product. The shipping was quick. I had myself a Taubenabwehr tinker on my window. I have adhered to the adhesive metal holders and a metal bar which. After 24h bombproof was. Also the mounting of the Spikes keeps properly. The processing of the material is similar to silicone, but does not smell so far. Super I also found the screw at the top in order to later use the rest in the tube yet. I would buy the mounting adhesive back!