Water Gremlin developed the Rubbercor® Sinker in 1949… the first truly original idea in sinkers since the rock. Rubbercor® slips easily on and off your line. Just give the rubber ears a half twist in opposite directions and Rubbercor® is ready to take your bait down to where the fish are biting. Water Gremlin's Rubbercor® Selector #14RC offers 25 pcs. per selector.