Musk didn't specify when those "Boring Bricks" will be available beyond saying that they are coming "soon". But when asked if these bricks could be utilized for affordable housing, he said the bricks feature "a precise surface finish" and two people could erect a small house's outer walls in around one day with the materials.
"Guaranteed to be Flamethrower-proof!" he quipped to another.
In a later tweet, Musk also confirms kits will be offered with the first being for ancient Egypt. When completed, this project will be the first step toward Musk's goal of connecting NY and Washington in a ride lasting less than 30 minutes.
The $500 fire guns and their complementary product, the "overpriced Boring Company fire extinguisher", sold out within a week.
Last week the company announced the route of its public transport project that would link Washington D.C with Baltimore.
Earlier this month, he said he was adjusting the Hyperloop plan to prioritise pedestrians and cyclists over cars. Instead of flamethrowers this time around Musk says that he will be selling a range of "lifesize 'Lego-like block" for building. The firm is best known for its plans to build so-called Hyperloops between major USA cities that will transport passengers at more than 750 miles per hour. Or do you think it'll be decades before Musk's vision is realised?