package includes 10pcs of oval ring blanks, plus 10pcs of matching glass cabochon
the ring bezel is fitting for 13x18mm oval cabochon or stones
the ring is not adjustable, the inner size is about 17.7mm in diameter
the irng base is made of stainless steel, no fade or tarnish, the dirt you see inside the bezel is just steel residue, it does not affect the final rings you are making
with the right stone or cabochon, you can diy your own special rings