Customer Tom Boddingham received this size 1,450 monster foot after a ‘clerical error’.
The 27-year-old, whose left foot is slightly longer than his right, placed a £15.50 order with Monster Slippers for a novelty pair of claws.
But, instead of a size 14.5 left slipper, he received one that was 210cm (7ft) long.
The British-based company blamed a translation error by its Hong Kong factory that led to a mix-up with a decimal point.
Mr Boddingham said: ‘It was sent directly from Hong Kong and measures the same length as a grizzly bear or a family car.
‘I reckon I must be the owner of the biggest slipper in the world.’
The company executive, from Ilford, east London, plans to sell the oversized slipper on eBay but the maker wants to keep it if Guinness World Records verifies it as the largest ever made.
‘We asked our factory to make one size 14.5 monster claw. His other foot fits our extra large,’ a company spokesman said.
‘They messed up and didn’t notice the decimal point, so here we are with a blinking great slipper that’s equivalent to a size 1,450.’
