Perfect Compatibility: This lampshade reducer ring is designed specifically for E27 bulb fittings, allowing you to adapt various lampshades to fit smaller bulb holders. It ensures a secure, stable connection for both table lamps and ceiling lights Durable Material: Made from high-quality white plastic, this lamp shade adapter ring is sturdy and resistant to long-term wear. Its durable construction ensures that it won't easily deform, making it a reliable choice for your lighting fixtures Quick & Easy Installation: Featuring precision threads, this lampshade adapter ring can be installed effortlessly without any tools. Simply twist it into place for a quick and hassle-free setup, saving you time and effort Versatile Use: This lamp shade reducer ring is ideal for various lighting applications. It's perfect for adapting lampshades to fit different bulb sizes in table lamps, chandeliers, desk lamps, floor lamps, and wall lamps, offering flexible lighting solutions for your home or office Package includes: 6 x lampshade reducing ring screw ring E27. Size: 57mm outer diameter, 40mm inner diameter, 9mm height. It's perfect for DIY lighting projects, ensuring compatibility with a wide range of lamp types and sizes