What do you think? Faked? But if not, how is this possible?
Video Link: Block Illusion
- Earmuff Headphones

Wow! Easily coolest ruler out there. Can’t stop measuring! One ruler to rule them all!

Each ruler is six inches of fun (outta the gutter, you), and each one features a different Scanimation (an illusion style designed by the genius: Rufus Butler Seder). Just tilt the ruler back and forth to see the motion! You can [...]