Spider Chalk Mega Block

Spider Chalk produces 8oz pure magnesium carbonate blocks for climbing and powerlifting, designed to last longer and provide better grip.

• The description claims the blocks last longer than conventional blocks.
• The description claims the blocks have better grip and superior drying ability.
• The description claims the blocks are 3x the density of standard blocks.
• The description claims the blocks are approved for IPF and USAPL Powerlifting competitions.