Tag: Impact (4) | Newest
An officially licensed, double-take-inducing pint glass with your favorite NFL team's logo and a metal football seemingly thrown through the side of it.
This innovative punching bag is filled with water so that it never loses its shape or develops painful hard spots and feels more like striking a real human.
When these mysterious rocks are struck together a bright flash of light occurs at the point of impact, a phenomena known as Triboluminescence!
