The lamp holder is made of high quality aluminum. Excellent workmanship, which will not rust, safe and durable. The antique lamp holder can be mounted on a socket and cord for hardwired lighting with an exposed bulb for new DIY assembly. Suitable for desk lamp, bedside lamp, dining room lamp, counter lamp, chic lamp. Retro look adds atmosphere and flavor to vintage lighting fixtures. Simple Design: The design of aluminum cover and ceramic lamp holder is beautiful and unique. Easy Installation: It is great vintage light bulb complements any style room and provides mood or task lighting for vintage fixtures. Note: The data is all measured manually, please allow 1-3cm error due to light and display difference, there may be some color difference, please refer to the actual item you received.