A soft rubber compound bead that is commonly used when fishing with chod and helicopter rigs. These soft rubber beads will grip the mainline or leader to provide a buffer or backstop to the hook link. This allows the angler to set the depth of the rig, so if they are fishing in deep silt, they can move the rubber bead farther up the line to prevent the hook link burying into the silt as well. Also good for running rigs, where they provide a shock buffer between the lead and the mainline knot to the swivel. These beads are best used with a lead core or braided leader rather than on naked setups.