This is high poly glass ceiling light.
Stack not collapsed.
Some info about this light:
Have you ever seen Shar Pei puppies?
These sheaths of wrinkled crystal take their cues from them,
but the “cute factor” is replaced by a stunning and elegant
display of light through a top quality crystal. With a lenght
of approx. 52cm/20.5” and diameter of 10 cm/3.9”, they can also
be grouped together to further highlight the mesmerizing, undulating surface.