Hammered niobium seam rings.

Hand made by Apex. Various sizes available. 

Solid niobium seam rings.

1.2mm x 10mm or 1.6mm x 10mm are suitable usually for the septum, helix or daith.

1.2mm x 12mm or 1.6mm x 12mm are commonly suitable for the daith or conch. 

Best fitted by a UKAPP member or UKAPP standard studio.