This is one of those products you have to try and see to be believed.  I was skeptical but I am no longer.  If you have a tough time seeing, arthritis, are learning new knots or struggle with some finger dexterity the knot needle will undoubtedly make a big difference in your fishing day. The tool clips to your vest or pack, is hardly noticeable and ties 20 + knots.  “Knot” only that (haha), but if you drop it the water the company will give you 50% off your next purchase.