Good knots are essential in fishing, so protecting them is an important part of rig building. These Knot Covers are malleable, they slide over the knot, which protects it from external damage and prevents it from sliding from side to side on the swivel eye. Theyre extended in length so they can be used on a wider variety of knots and swivel/link sizes. Its streamlined design also prevents weed clogging around the knot. They come in two sizes, a small and a large for all eventualities. Theyre also available in a clear for those subtle rigs and in luminous for when you want to add a bit of attraction. The Glow versions can be charged with the Tronixpro UV Torch.