IDS Magnetic Leather Billiard Snooker Belt Clip Chalk Holder Capacity: Approx. 26 x 26 x 24mm(L x W x H) Opening Diameter: Approx. 14mm Material: Plastic, PU, magnet Color: Black Chalking couldn't be made simpler, and this way you won't be interrupting your pre-shot routine with a distracting "hunt the chalk" routine