Climbing chalk is used by rock climbers to improve their grip. When climbing on warm days, a climbers' hands can become sweaty, causing him to lose his grip. Chalk absorbs the moisture from the skin, therefore strengthening his hold on the rock. Climbing chalk can be found in the form of loose powder, or a chalk ball. The chalk is stored in climbing chalk bags around the climbers waist, for easy access.

Most climbing chalk bags are sold with a drawstring closure at the top. The climber can place a chalk ball in the bag and leave it open when climbing, making the chalk easily accessible. If the rock climber is using loose powder, she can pour it in the chalk bag and cinch it closed. It must remain closed throughout the climb, to prevent the chalk from spilling.

When a climber's hands become sweaty, he chalks them to absorb the moisture. If he is using a chalk ball, he just has to rub his finger tips on the ball. This removes the sweat and applies a light coating of chalk. If the climber is using loose powder, he has to open the chalk bag slightly, dip in his fingers and re-close the bag. When he rubs his fingertips together, the moisture and loose powder are removed.

When using climbing chalk, it is recommended to use a chalk ball if possible. Climbing chalk, in the form of loose powder, can spill on the rocks when it is being used. This poses a risk to the climber, as although it improves the hand grip, it makes the footholds slippery. When the climber places his foot in the foothold, there won't be any traction, resulting in him slipping. Chalk balls are much safer, as the chalk is contained in a mesh bag and can't spill onto the rocks.

There are a couple of downfalls to using climbing chalk. Chalk is composed of calcium carbonate, which is what absorbs moisture. Unfortunately, this same chemical can cause the rock face to erode. When the climber uses chalk, it rubs off on the rocks, and builds up over time. The calcium carbonate eats away at the rock face until the rock becomes brittle and breaks away.

Chalk also marks a trail on the rocks. This makes the route noticeable to other climbers and removes the challenge of the climb. When large amounts of moisture from the air combines with the chalk, it can form a slime on the handholds that can cause other climbers to slip.

Challenging routes require a climber to use climbing chalk. It should be used as sparingly as possible, though. Always try to use a chalk ball to minimize the danger to yourself and others. It will keep the chalk contained and help minimize the damage to the environment.