Package Include: You will get 20 nail plate holes and hooks, and 20 rubber protection pads. Opening : 2.5 cm, thickness: 3.2 mm, diameter 20 cm. It can meet all your hanging needs. Installation is simple: please tilt the hook up and insert the two pins into the holes in the nail plate. After insertion, straighten the hook so that the end of the lower hook is against the board and locks. High load capacity: the maximum load capacity of our hole-hole board hook is reduced. 'about 3 kg and it is not easy to fall. Can show you a variety of products or objects. Wide range of applications: suitable for supermarket shelves, jewelry stores, hardware stores and household tool rooms. Organize your shelves and make them tidier. Workshops and garages, etc. High-quality craftsmanship: It is made by high-quality electroplating technology, which is not easy to rust, has high abrasion resistance and is not easy to damage after long term use. The additional rubber particles can also protect the user from scratches.