High Density Neoprene Stopper Designed to Peg the Weight Close to the Hook on a Punch, Flipping or Pitching Rig. Eliminates Crimping and Possible Damage to Line While Securely Holding the Weight in Place. 10 Per Pack. Small: For Line Diameters Between 4-8 lb Test, Medium: For Line Diameters Between 8-12 lb Test, Large: For Line Diameters Between 12-20 lb Test.