Packaging content: Contains 6 pieces of E27 lampshade reducer screw rings, meeting the replacement requirements in multiple scenarios Specification parameters: The outer diameter of the E27 screw-type lamp head replacement ring is 57mm, the thickness is 9mm, and the inner diameter is 38mm, precisely matching the E27 lamp holder Durable material: The screw ring of the E27 lampshade reducer is made of hard plastic, which is sturdy, resistant to deformation, and can be used stably for a long time without easy damage Easy installation: The E27 screw-type lamp cap replacement ring is precisely designed with an internal thread. It can be easily fixed by hand with a light twist without the need for tools, and the installation is completed with ease Wide compatibility: The E27 lampshade reducer screw ring is suitable for various types of lamps such as table lamps, chandeliers, and wall lamps, and can flexibly fix different lampshades