This is the beta test of the grow ring. It is designed to stay in contact, and remain comfortable and usable erect or flacid. Made with Recreus Conductive Filaflex TPU.
This tpu offers excellent conductivity, and remains flexible. Over flexing will degrade this ring. The TPU is very durable, but the long term durability of the grow fingers is not yet known, but have held up great so far in testing.
The price reflects the filament cost (over 2x conductive tpu), print time (3x longer), and print failure rate.
More info is available here in this Patreon post: