I love this!  I used it to hang a hummingbird feeder on my kitchen window.  You can't even see the hook, and I love that it looks like the feeder and the hummingbirds are hanging in midair.  Very easy to apply and like all command strip products, is very sturdy and easy to remove (I had to reposition mine to get a better view of the birds, came up easily without leaving any residue.)   I definitely recommend this!