CBD Fish Tank e-pipe is so far my first custom piece I did specially for an CBD cartridge. The client, who commissioned me to craft it, has his own tank designed by him. It is quite slim cartridge, so the usual diameter of the pipes shank would be ridiculously thick. I had to craft something thinner. It sounded easily in my head, but it wasn’t. There was such small space for a 510 connector and wiring that I had to develop completely new way of punting it together. The CBD Fish Tank e-pipe is classic styled poker sitter powered by one 18350 Li-ion battery cell. The bowl material is Italian briar wood with very nice “bird eye” texture.