High Quality: Made of high quality plastic, these no drill curtain rod holders are stable, durable. Compare to the old designed narrow open/close plastic snap fasteners, our curtain rod hooks are wide and strong enough with a bearing capacity of 5kg/pair. Holds Well: The spring loaded clip of these nail free curtain rod holders are very sturdy to hold whatever you want to run through it. Wires, curtain rods can't fall out of it unless you press down on the spring loaded clip to remove them. Suitable for curtains or towel rods with a diameter of 0.99- 1.98 cm. Stuck Easily: The adhesive of the curtain rod hooks will stick no matter the weather is extremely hot/humid. But make sure you know where you want to put them. Due to the strong adhesive, it's hard to take them off to put them back on (maybe ripped paint or sheetrock off when probably removed). Easy to use: Just make sure the surface you apply the curtain rod holder to is clean and flat, such as glass, mirrors, ceramic tiles, marble, metal surfaces. No nails, screws, or wall damage. Using a credit card to seal the glue down firmly or with your fingernail will do just fine. Application: It is a good choice to hang light curtain rods, towel rods, insulated curtains, shade, blinds, belts and hats, string lights, replace sticky aluminum curtain rod mounts, etc. Suitable for bathroom, kitchen, living room, office. These self-adhesive curtain rod holders can work great!