YAMAHA EF2000iS GENERATOR MAGNETIC DIPSTICK OIL FILLER WARNING: only GREAT RIVER COMPANY SELLS GENUINE PRODUCT - The only authorized seller of GREAT RIVER COMPANY MAGNETIC DIPSTICK, NO MESS OIL FILLER, EXTENDED RUN FUEL CAP Built in Super Magnet helps keep metal fragments from harming your generator. Knurled for easy grip when installing and removing. Built in funnel making adding oil more convenient. Made in the USA by Great River Company Inc.