I followed all the instructions, have smooth surfaces, used alcohol to clean the surface, waiting over an hour to hang, and they still came unstuck after the first day, kind of a waste of money, adhesive needs to be stronger!

I bought these to hang up my lights and first storm we had every single one of them snapped and my lights came tumbling down. Definitely not worth the money.

Worked as needed

great fish

They work well for hanging lights.

Only half of them stuck when used around my back door

These little clips are awesome. We used them for lights and we also use them in the garage to hang up the kids helmets

Went up much easy than the regular gutter clips. Through cold temps and multiple rainy days the lights have stayed up.

We tried to place one hook, in fair temperature (not that it should matter as stated on the packaging) and it did not even remotely stay put on the smooth surface. Extremely disappointed as hanging the lights on our patio of the new house after just getting home from college was going to be a great family activity. Spent nearly $50 on these clips to end up only disappointed and feeling guilty I recommended these to my parents.

We purchased these clips to use on our shed last year for the Christmas lights so we didn't have to use a ladder for the gutters. Wasn't sure if they would stick and stay on while being exposed to our brutal, cold winters here in Iowa. Not only did they stay on for the holiday and the rest of the winter, but we had a Derecho - an inland hurricane of 140 MPH winds - trees, power lines, traffic signals, and more came down and were destroyed - but our clips are right where they were originally placed and can still hold lights! If that isn't holding power, I don't know what is!