Check the listing for details. BATTERY CHARGER KNOB W/POINTER PUSH ON FOR Harvester, John Deere, Schauer, Solar. Condition: New. Listed at 9.97 USD. NEW Knob, Black Plastic with Pointer - Push-On, for Timers ONLY FOR MANY AUTOMOTIVE, AGRICULTURAL AND INDUSTRIAL BATTERY CHARGERS. THIS ITEM: Knob, Black Plastic Skirted with Pointer - Push-On, for Timers ONLY Skirted Pointer Knob for Power Forged Timers - Push-On Skirt Diameter: 1-3/4" (33mm) Shaft Diameter: 1/4" (6 mm) (3/4 flat D-Shaft) Black Plastic Original style replacement for various chargers from many charger manufacturers. Some brands that may fit: Schumacher, Exide, NAPA, Snap-On, Sears, Die-Hard, Craftsman, International Harvester, John Deere, Schauer, Solar, Century and others.