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 33mmRing 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.