5 mm streamlined rubber shock beads that are useful for giving protection to knots. Where a standard bead will eliminate most damage to knots on rigs, rubber beads add that little bit of shock absorbing that fully protects the knot. If a rig is likely to put a lot of pressure on a knot, then using a rubber bead will help protect the durability of the knots used. Rubber beads have the benefit of natural elasticity and combined with a good-sized borehole mean the bead can be slotted over the knot for added protection in most cases. Rubber beads are useful for pulley, Portland and running ledger rigs.