Psychi | Ultimate Grip Rock Climbing Bouldering Chalk Ball | Grip Strengthener for Rock Climbing, Bouldering, Gymnastics, Weightlifting & more - Lasting Absorbent Sports Chalk For Your Gym Bag

I bought these as some of the exercise bars at work are smooth and I lose my grip if I'm sweating or lifting heavy. These chalk balls are actually powdered chalk sealed in a permeable netting which allows the chalk to penetrate through onto the hand. Its a really good idea and keeps the chalk intact and contained while allowing it to be rubbed/ patted on the hand to allow the chalk onto the hand. These are so good, I bought additional so I have them at work overseas and at home. When not in use, I keep them in a plastic bag as a very small dusting of the chalk powder can fall out but its not an issue to be concerned about. Great idea, works well and would definitely recommend.

Muy útil y más limpio que el magnesio sin más. No sé cuanto durará porque hace un par de meses que lo compré y usándolo 1 o 2 veces por semana no puedo decir cuanto dará de sí...

I use this chalk for rock climbing. It is perfect and does the job

My gymnastics athletes loved this. It was less messy than using a block of chalk.

La poudre est très fine.. Foncez vers de la magnésie liquide premier prix, ça vaudra mieux