These aluminum meter sticks are rigid and straight. Because they are hollow, the aluminum meter stick has about the same mass as a wooden meter stick.
Bonus Application:
Use an aluminum meter stick to demonstrate Lenz’s Law by dropping a neodymium magnet through its hollow core. The magnetic drag will cause the magnet to drop very slowly; much slower than a coin drops.
What’s Included
6x Aluminum Meter Sticks
https://www.pasco.com/products/lab-supplies/measurement/me-7032