As a 2nd year college student, I have had to use/buy many types of Command products throughout my college experience. I bought these clips for my first college apartment at Ohio State, my roommates and I wanted to be able to decorate our porch and found really cute outdoor string lights. We tried many ways to hang the lights and nothing was working. Until we found these clips at a local store one day! THEY WORK!!!! We have had the lights hung for 2 moths now and they have made it through every system of weather that has come through! I would highly recommend this product, or any Command product to anyone! I love Command!!