what are these called?

KGB, CIA, MI5/6, whatever intelligence service is to keep Jews in power and to kill those who rise up against Jews. Bishop Velimirovic said that Jews created capitalism, communism, freemasonry, strikes, internationalism, globalism, etc. to step on heads of Christians and to crush them; add Black Lives Matter, Q, Antifa, QAnon, KKK, etc. to this. Only WASP neighborhoods were trashed in NYC; when BLM leader announced that they was going to trash Jewish stores, they was arrested immediately. Similarly, Jews sponsored American Civil Rights Movement in order to step on throats of Christians and to crush them eventually. All the revolutions are sponsored by Jews. 9/11 false flag was to attack Iraq; Statue of Liberty false flag is to attack Iran. Heresy leads to loss of love; (according to saint Pelageya of Ryazan) Jews will not receive the unforgivable mark of the beast, but will make sure that all non-Jews will. If you reject mark of the beast, then ur direct ancestors go to heaven (according to saint Vyacheslav Krasheninnikov). Hide within a 10-15 people group (saints Gabriel Urgebadze and Seraphim of Sarov); no documents (documents r from satin; burn 'em all); no electronics (so that u won't be tracked; even old broken  unplugged 1970 tv set will show the antichristo using Tesla's ether). oh snap!!! here's the evil flying antichristo flying thru ma neck ov de woodz; hide ur kidz, hide ur wife, antichrist iz flyin' thru town; take ur glocks out and shoot dat son of a bytch down (he's an s-0-b 'cuz his mom is a 12th generation prostitute according to saint Lavrentiy of Chernigov); forgive me.

They could be almost anything above ground or the surface, such as a ladder, stool, etc.

Technically they are self-balancing scooters, other names are self-balancing board, or swegway but most people call them Hoverboards after the Back to the Future film franchise. They patently don't hover as they are wheeled.

I think they are called hoverboards

even though they don't hover