WSBB Magnesium Carbonate Lifting Chalk

WESTSIDE BARBELL MEGA BLOCK. Premium lifting chalk for lifters who chase the work everyone else avoids. Dense, high purity block chalk pressed from 100% magnesium carbonate and made in the USA. Maximum grip, minimum mess, zero excuses.

Block chalk beats loose chalk where it counts. Less airborne dust, less waste, and a denser application that locks into your hands and holds through every rep. Break off what you need, crush it into loose chalk when you want it, and keep the rest sealed and ready. This is chalk built for your heaviest days.

What's in the box?

• 2 x 8 oz Mega Blocks (1 lb total)
• 100% pure magnesium carbonate
• Made in the USA
• Net weight 1 lb (454 g)

Built for

• Heavy deadlifts, rack pulls and grip work
• Powerlifting, weightlifting and strongman
• Pull-ups, gymnastics and bar work
• Any lift where your grip decides the outcome

Frequently asked questions

Is block chalk better than loose chalk?
For most lifters, yes. Block chalk is denser and cleaner. It puts far less dust in the air, wastes less, and lets you control exactly where it goes for a firm, even coat that holds through heavy sets. You can still crumble a piece into loose chalk whenever you want.

How much chalk is in the box?
Each box holds two 8 oz Mega Blocks, for a full 1 lb (454 g) of 100% magnesium carbonate.

How long does a Mega Block last?
A long time. Because the chalk is dense and you use only what you need, one block outlasts bag after bag of loose chalk for most lifters. Exact life depends on how often and how heavy you train.

Is it pure magnesium carbonate?
Yes. The Mega Block is 100% magnesium carbonate with no fillers or drying agents, and it is made in the USA.

Can I break it into loose chalk?
Yes. Snap off a chunk and crush it in your hands or a bowl any time you want loose chalk, then keep the rest of the block sealed so it stays fresh.

What can I use it for?
Any grip-dependent training: deadlifts, rack pulls, presses, pull-ups, Olympic lifts, strongman, and gymnastics or bar work. As pure magnesium carbonate, it also works for rock climbing and any sport that demands a dry, secure grip.

Will it make a mess in my gym?
Less than loose chalk. Block chalk releases much less airborne dust, so it stays on your hands instead of your platform. Many gyms that limit loose chalk allow block chalk, but always check your gym's rules.

For those who do what others won't.