Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Is this made of plastic or metal (the white ring part?)  thank you
Document: the pebble glass insert is a bit "okay" (wish was just opaque green/white glass) - but I love the fact it is almost completely flush with the ceiling. We used in basement bath with relatively low ceiling (and tile surround). It was perfect!
fits great on my existing fixture, looks nice - exactly what I wanted.
It looks really nice in shower.Easy to install.I do wish it had option of clearer glass to emit more light
Answer: no