Description: This chalk is of good quality and not powdery as other chalks. It adheres to tip securely and leave no residue on table. The chalk sticks better and lasts longer, works well for more precise shot.The blue dry one is suitable for snooker, helps to do precise shot, and green greasy one for pool, sticks better and lasts longer on the tip. This item is a must accessory for billiard lovers. Specification: Material: Calcium Carbonate Color Options: Blue (Greasy); Green (Dry) Size: approx. 2.2 * 2.2 *2.2 cm / 0.86 *0.86 *0.86 inch Weight: approx. 260g (1 Box) Package Included: 1 * Box of Chalk (12pcs)