Loon™ - Ergo Knot ToolLoon Ergo Knot Tool A simple knot tool Nail knots aren't tested often, but when they are there is a lot on the line. It is worth getting it right, but best to avoid spending all afternoon cursing and trying to find a substitute for a solid knot tool. The Ergo Knot Tool makes nail knots easy and comes with clear instructions on how they are to be tied. FEATURES Ergonomic design Quickly ties nail knots Instructions included