Device is made of stainless steel and its surface is polished.
Extra Small&Flat Ring cage length is about 1.5'' (38 mm), inner diameter is about 1.34'' (34 mm); Small&Flat Ring cage length is about 1.69'' (43 mm), inner diameter is about 1.34'' (34 mm); Extra Small&Curved Ring cage length is about 1.5'' (38 mm), inner diameter is about 1.34'' (34 mm); Small&Curved Ring cage length is about 1.69'' (43 mm), inner diameter is about 1.34'' (34 mm).
