I-Ring Crystal Gasket, 0.9mm Depth, 0.45mm Width (19.5mm to 29.0mm diameters)

I-Ring Crystal, 0.9mm Depth, 0.45mm Width, 19.5mm to 29.0mm in diameter in 0.5mm increments.  Please choose desired inner diameter.  Other diameters are available under other listings, including different crystal thicknesses.

Suitable for mineral and sapphire crystals ranging from 1.0mm to 1.5mm in thickness.