This is a plastic ring that is used in conjunction with your existing recessed trim to fix the gap between the ceiling and your trim if the hole was cut too large. This is sometimes referred to a "Goof-Ring".
|MPN (Part No.):||NOR-30B|
|Safety Rating:||UL Indoor|
|Outside Diameter:||7.75 Inches|
|Inside Diameter:||6.00 Inches|