Schmidt 6040 FineLiner Fiber Tip Metal Refill - Black Ink FineLiner Fiber Tip Black Ink Refill by Schmidt. Universal Size Spring Loaded Fiber Tip Refill. Refill Reads: Schmidt FineLiner 6040 Nib Size: Broad (1.0mm). Length: 4 5/16 inch (11cm), Diameter - .245 inch (0.62cm) Made in Germany - Distributed by Lanier Pens - USA, Ensure TOP Quality product - buy direct from Distributor!