I just received this TWSBI Eco Heat, an orange fountain pen for 2023. I also got a bottle of Diamine 150 years Anniversary Blood Orange ink.
The pen has a fine nib and I was surprised at how smooth it is. I shouldn't have been because TWSBI's Jowo nibs are known for smoothness. The ink is a deep red slightly on the brownish or maroon side when writing, at least on my 85gsm paper, which is off white.
These are both very nice.
