My first thought when I saw this item was to hang a bird feeder from a window on the outside.  I thought it through and realized that it might be a lot of work refilling the feeder since the weight capacity was a total of four pounds.   I then decided that I would ad a sun catcher to the window instead.  With this application a simply cleaned the outer window with alcohol and was ready to apply the adhesive very quickly.  Within a couple of minutes I was hanging the vibrant colored glass piece sun catcher and enjoying the suns rays casting color throughout the room.  This has been up for a about four weeks in below freezing and above freezing temperatures and has held up just fine.  This is a simple and inexpensive solution to add to any window in your home.   I suggest you give one a try and I bet you come back to order another.

This Command Outdoor Window hook was sent to me free in exchange for an honest review.