I used these to hang the fireworks fairy lights for my sons wedding. LED-Fairy-Lights-Fireworks-Bouquet-Copper-String-Lights-Battery-Remote-Control. They use 4×AA batteries and weigh just under the 225g recommended weight. They did the job and didn’t mark the ceiling when they were taken down. I was very impressed and glad I took the chance as I was a bit apprehensive when I saw how small they were. The hooks swivel too. I couldn’t find these in the shops advertised and had to buy them online. Mighty Ape had the cheapest price and shipping was fast! They arrived two days before the wedding. Great company! Will recommend and buy again. Thanks Mighty Ape :)