OstroVit Chalk Block – 57 grams

OstroVit Chalk Block is a 57 g cube of pressed magnesium carbonate designed for use during weightlifting, gymnastics, bouldering, and other grip-intensive training. The solid block format keeps application controlled and mess to a minimum compared with loose chalk powder, making it a cleaner option for gym bags and chalk buckets alike.

To use, simply break off or rub the required amount directly onto the palms and fingers before lifting or gripping. The magnesium carbonate helps absorb moisture from the hands, which many athletes find useful when working with barbells, pull-up bars, gymnastic rings, or climbing holds.

The block format is a straightforward choice for anyone who wants the performance characteristics of traditional chalk without the fine dust associated with powdered versions. At 57 g, it’s a compact size well suited to individual use, whether you’re training in a commercial gym, a home setup, or an outdoor bouldering environment.