Veevus Fly Tying Thread 14/0 - 3 Color Combo Pack -Black, Brown, Olive (Dark, 14/0) Veevus Fly Tying Thread, Strongest Tying Thread Available Includes 3 spools of 14/0 thread in Black, Brown and Olive. Ultimate small fly thread. Little thread build-up. 100 meter spools. Super Strong 14/0 thread.