1. Material - This industrial hook is made of iron metal with a galvanized surface, and the screws are made of stainless steel. 2. Bearing capacity - The circular base plate has a larger and more even stress surface, and this lamp hook can bear a maximum weight of about 100 kilograms. 3. Application scenarios - This hook can be used to hang various types of lamps such as ceiling fans, mosquito nets, lanterns, chandeliers, plants, birdcages, baskets, wall - mounted lamps, branched chandeliers, and crystal lamps. 4. Material: Metal (Screws: Stainless steel) 5. Dimensions: Base plate diameter: 90 mm; Height: 35 mm 6. Packaging: 2 sets of threaded base ceiling plate kits 7. Installation steps: 1. Before installing the ceiling hook, you need to determine which holes to install. It is best to choose one of the holes on the right side of the hook head, and then choose another two holes to form a stable triangle. 2. Place the hook at the selected hanging position and mark the positions of the installation holes on the ceiling. 3. Drill holes according to the marked positions and then press the expansion plugs into the holes. 4. Align the holes on the base plate with the holes on the ceiling and then tighten the screws. 8. Precautions: 1. The above dimension data are all manually measured, and an error of 1 - 3 mm is allowed. 2. The installation process of the hook is very simple, but we still recommend that you have it installed by a professional.