Made of high quality aluminum material, lightweight and durable. Easy carry and convenient use.can use pool cue chalk available anytime, anywhere. Strong magnetic point make cube easy to open or close; protect chalk from moisture. Great pool accessory for snooker, billiard, table cue or other tournaments Great to chalk your cue and keep it handy and easily accessible, stops chalk making a mess in your pocket. Specification: Material: Aluminum Color: Black/Pink/Blue Holder Outside Diameter: Approx. 30 x 30 x 30mm/ 1.2 x 1.2 x 1.2inch Package Includes: 2 Pieces Billiard Chalk Holder Note: Please allow 1-3mm differences due to manual measurement Please understand that we cannot guarantee photos and the real color are 100% the same due to the light irradiation or computer display difference.