KN4C----B2---21,BALL KNOB 1.250 IN DIAMETER WITH
KN4C----B2S--21,BALL KNOB 1.250 IN DIAMETER WITH
KN4C----B3---21,BALL KNOB 1.380 IN DIAMETER WITH
KN4C----B3S--21,BALL KNOB 1.380 IN DIAMETER WITH
KN4C----B4---21,BALL KNOB 1.470 IN DIAMETER WITH
KN4C----B4S--21,BALL KNOB 1.470 IN DIAMETER WITH
KN4C----B5---21,BALL KNOB 1.610 IN DIAMETER WITH
KN4C----B7---21,BALL KNOB 1.880 IN DIAMETER WITH
