TWSBI guides
2 guides to TWSBI products, plus 1 roundup that include TWSBI. Brand origin: Taiwan. Made by TaShin Precision.
TWSBI Diamond 580: Piston Capacity, Nibs & 580AL
TWSBI Diamond 580 fountain pen explained: a clear piston filler holding up to 1.98 ml, 142 mm capped and 28 g, swappable steel nibs, and the 580AL and 580ALR.
TWSBI ECO: Piston Filler, Ink Capacity & Nib Sizes
TWSBI ECO fountain pen explained: a piston filler holding about 1.76 ml, EF to B and 1.1 mm stub steel nibs, 138.8 mm and 21 g, the ECO-T, and where it's made.
Best Fountain Pens for Beginners (2027): 6 Picks
The best beginner fountain pens compared: Pilot Metropolitan, Platinum Preppy, Pilot Kakuno, LAMY safari, TWSBI ECO & Kaweco Sport. Nibs, filling, size, price.