What's the principle behind this? It looks amazing.
It's rude to keep knocking on a car that won't budge!
A teacher's professional skill: changing faces in seconds.
Can a high-speed flip land you on the next bed?

What's the principle behind this? It looks amazing.
It's rude to keep knocking on a car that won't budge!
A teacher's professional skill: changing faces in seconds.
Can a high-speed flip land you on the next bed?