Review on PEAK DISTRICT Magnesium Carbonate Gym Chalk (2 Pack) - Ideal for Lifting, Rock Climbing, Gymnastics - Personal 2 oz Blocks - Low Powder Bricks for Bars, Bouldering, Athletic Workout, Lifters & More by Jojo Howell

Bought this chalk while field testing new brands of chalk to supply my gym (strongman and powerlifting). The pack is opened and there are 10 pieces. She grabbed the largest one and ran it carefully over her hands and between her fingers, and it immediately broke into several pieces. Also, the chalk on my hands (including my back) was very slippery, more like baby powder than chalk. Tried to release a low back squat and the bar wanted to slide down the chalk marked area. They asked the athlete for a second opinion and agreed that breaking the bar was becoming more difficult. I threw the bucket of chalk in the trash and with it the second block. Easily double the price of the next most expensive chalk I test and a total waste.