Coromandel Cacti

Request this species（in a different size or quantity）

Tiniest form of the slow-growing H. nigra. Really suits a bonsai-style pot, with rocks, but should be OK outdoors, in fact should become even blacker in strong light. Probably not very frost-tolerant.
Indoors OK, Outdoors OK only if protected from winter rain.

The pic/s tell the story.
It is in a 8 cms diameter pot.