Block Chalk

Block Chalk
$ 29.95

 Spider Chalk manufactures pure, lab-grade magnesium carbonate block chalk in 5.5 oz (150 grams) Mega Blocks.

Mega Blocks last 2x longer than conventional blocks
1 lb Spider Chalk = 2 lbs of regular blocks.

We are the only manufacturer of gym and weightlifting chalk in the USA. Our process ensures that your blocks last longer, do not crumble, create less dust and grip stronger.

**Choose 2 lbs, 5 lbs or 10 lbs**

Top athletes tested Spider Chalk Mega Blocks and they are now the standard for any weightlifter, powerlifter, gymnast or rock climber. We do not use fillers, binders or drying agents just pure, unbelievably dry magnesium carbonate. Our manufacturing process produces a denser, cleaner and more pure block.

5.5 oz Mega Block Dimensions:
Weight: ~150 Grams
Length: 4"

Width: 3.5"
Thickness: 2"


1. Lasts Longer - Pure chalk lasts longer on your hand and has superior drying ability for better grip.
2. More Dense - Our manufacturing process makes the blocks less brittle than a standard block so they don't break into pieces and make a mess!
3. More Chalk - Spider Chalk Mega Blocks are 150 grams per block, other blocks are 56 grams.
4. No Fillers - Other blocks use binders and fillers, we use purely magnesium carbonate.
5. Made in the USA - All conventional 2 oz blocks are made in the same factory and private labeled. We are the only chalk company who manufactures blocks in the USA and we're proud to make Mega Blocks at our facility in Atlanta, GA.