Solid block form of magnesium carbonate. Keep your hands from sweating and dripping when you're in the middle of an intense workout. Also used traditionally for Gymnastics and both Power & Olympic Lifting. Gives you a better stronger grip for extra hang time on the Pull-Up bar and more reps on the Barbell. Works to reduce friction from contact with equipment.This listing is for Four single blocks of 2 oz. chalk. Total is 8 oz!