Durable material:The shelf clips are made of high quality plastic, they are strong and durable, don't worry about breaking and falling off, they can be used for a long time. Package include:you will get 20 pieces wire shelf clips with 20 screws and 20 expansion.Sufficient quantity. Enough for your daily use and replacement. Easy to install:Use the included screws and expansion tube to fasten the clip to the desired surface, easy to install. The installation method is shown in the figure. Suitable size:These wall mount clips are simple in shape, light in weight, and have a good fixation effect, making them suitable for most wall surfaces. The size of each is 1.1 x 0.5 x 0.6 inch, which is convenient for storage and does not take up space. Wide applications:Plastic closet rack clips are not only suitable for closets, wall shelves, kitchens, hanging items, etc., but also for fixing wires, ropes, String Lights, etc., saving space and creating convenience.