Seamless R2 Dome Ring with specs identical to the ones Granite Earth sells with the hydrodomes, except the alignment holes are sized to fit my 1/4" dome alignment pins. This limited run was made possible as Daren shipped me the material, which added additional cost.

As international shipping is very expensive due to the need to use Priority Mail, if you are outside the US, select shipping - "Everywhere Else", and I'll send you a shipping quote. Be aware the cost is estimated between $60 and $100+ outside the US. Somewhat less to Canada.