Spider Chalk manufactures 8oz chalk blocks out of pure, lab-grade magnesium carbonate that won't crumble or break. Say goodbye to the brittle 2oz blocks and never again waste time cleaning up puddles of chalk dust. Lasts 2x longer than the same amount of regular, imported chalk. A single 8oz Super-Mega Block is equal to more than 1lb of regular chalk. These blocks are denser, cleaner, dryer, stick better to your hand and last longer.
1. Lasts Longer - Pure chalk lasts longer on your hand and has better grip with superior drying ability.
2. More Dense - Our manufacturing process makes the blocks less brittle so they don't break into pieces and make a mess.
3. More Chalk - Spider Chalk Mega Blocks are 225 grams or 150 grams per block, 3x the density of standard blocks.
4. Pure Chalk - Other blocks use binders which turns slimy when you sweat. We use only 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.