Within just a few seconds I knew I did not like it. The piece in the center means you have to lift the gun in the air, bring it down and then put it back into the next window and hope that you do not have to do it again as it moves out of that window. JMO I think the old H.S. Strut ones with the fiberglass stakes you stuck in the ground back in the 90's are better than that thing would be. I went back and looked again and noticed even the window hamper you more than I realized because of that circle in them limiting your movement even more.