BASHIBA SURFACE MODULATION ( 16.5 mm )
Internal Diameter: 16.5 mmwww.bashiba.com
We have different sizes of this ring already available in the BASHIBA shop on shapeways.
The customizable version is here:http://shpws.me/2QX3
2.05 w x
2.05 d x
0.807 w x
0.807 d x