Spider Chalk Refillable Chalk Ball

The World's most pure magnesium carbonate in a refillable chalk sock! Spider Chalk's Chalk Balls are the perfect pouch to fit in your hand, climbing bag or gym bag.  SPECIFICATIONS Made in America Size: 2-Pack includes 2 x 4 oz. balls Ingredients: Pure, laboratory-grade magnesium carbonate Tested & Approved: Used by top athletes for Bouldering, Rock Climbing, Weightlifting and CrossFit Refillable: With an elastic drawstring and heavy duty clip, Chalk Balls will last through repeated refill sessions. This will be the last chalk ball you ever buy. Spider Chalk Advantage: High-grade powder chalk and you can feel a difference immediately. Pure chalk lasts longer and remains dry even during sweaty workouts. BENEFITS Lasts Longer: Pure chalk lasts longer on your hand and has better grip with superior drying ability. That means Spider Chalk balls last 2x longer than any other chalk. Refillable: With an elastic drawstring and heavy duty clip, our Chalk Balls will last through re