To keep chalk dust to a minimum, many gyms require climbers to use a chalk ball. Don't worry, the Gym Chalk Bag has you covered. With an integrated, refillable chalk ball, a brush holder and a slot for your lead certification tag, this bag is tailor-made for indoor sessions and can clip directly to your harness or you can opt to use the included chalk bag belt. Integrated, refillable chalk ball Comes with chalk bag belt and can clip directly to your harness Slot for lead certification tag Brush holder Weight : 83 g (2.9 oz)