PRESCRIPTION STRENTH CHALK

By Throw Bros

$4.99

Developed in 1982, in a tent city deep in the forest outside Medellin, this 100% pure Colombian Magnesium Chalk is finally legal in the states. 

While the label might aim to fool, a Quadruple blind study at Stanford University found this proprietary blend of potent compounds has a 100% chance to increase weight lifted and distance thrown by 20%.

Guaranteed*

 

 

not guaranteed*