Durable Iron Material: Made of high quality iron material, durable and not easy to deform, can be used for a long time. The black coating is classic and all-match, suitable for all styles of interior decoration. Transparent Adjustable Screw: Comes with a transparent adjustable screw, which is convenient for you to adjust the fixing position and tightness. Easy to use: no need other tools, just drill a hole and plug the expansion tube, then put the screw into the fixture and screw it into the tube, finally screw the wire holder and fix the wire by tightening the plastic screw. Widely Uses: The pendant hooks can be used as ceiling hooks to position the long wire for a chandelier minimally to create a unique chandelier style. They can also be used as a great solution for cable management, providing a well-organized wall. What You Get: The package includes 6 pieces lighting hooks with matching expansion tubes, enough to meet your daily needs. (Hook cap diameter: 14mm, total height: 35mm,