Used "T"  Light Diffuser S115013

It is approx. 80mm across. Not sure what brand it is.

Item has been used with normal signs of cosmetic use, with some  scratching. But it is not damaged in any way, no cracks or dents. This light diffuser is fully operational and functions as intended.  I would rate it an 8, on a scale from 1 to 10.

Light Diffuser opening is 80mm across.

Light Diffuser has a depth of 42mm