Elon Musk claims his Boring Company has raised $10 million after selling ALL of its 20,000 'zombie-killing' flamethrowers in just four days
The flamethrowers, which retail at $500 (£351) each, are now sold out
All flamethrowers will ship with a complimentary fire extinguisher
It is described on the firm's website as the 'world's safest flamethrower'
Musk's Boring Company plans to build a 6.5-mile (10.5 km) shaft under Culver City, California, to carry cars on electric skates at 150 miles per hour (240 kph)
http:// www.dailymail.co.uk/sciencetech/article-5339465/Elon-Musk-says-Boring-sold-flamethrowers.html