It is made of medical grade polycarbonate material.It is lightweight, hypoallergenic and durable.
 
Color:  Red&Black, clear.
Cage size:  length is about 80mm, diametere is about 33mm
Ring Size:  One cage comes with only one ring.(40mm/45mm/50mm).

Default sent red 45mm ring.

Cleaning: Use a mild soap and soft type brush (toothbrush) for cleaning.
Do Not use household cleaning products.

Attention :It is complex to assemble, you‘d better use it with your partner.