Appears to be a sturdy antitheft device. Wished it came with a window sticker to further deter potential auto thieves, from even bothering to try & "Jimmy" the door, and try to steal the car...
I purchased these for my bro-in-law, and the bright green color block certainly brightens up the interior of his otherwise drab pale green exterior. He had a problem putting them on, (because he is a man), and didn't understand how to use the attachments to secure them. They seem to be of OK quality, but perhaps wouldn't hold up if you regularly had a dog accompany you in the car.
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