I have them. Mine clip right onto the window. They DO need to go onto the back part of the window that does not roll down. My husband decided to roll his window down just last night, after being told it would probably fly off, and it did. After 5 years, Chauncey will not be his traditional Holiday self. (I hope the photo helps. I know the antler clips can vary with manufacturer View attachment image_1543760112686.jpg ).