Features: With functions like prickly head and chalk storage, this billiard pool cue tip tool helps maintain a great frictions and shined on the tip of your cue. The concaved surfaces prevents scratching and provides a comfortable nonslip flat surfaces for easily use. Make of aluminum, this billiard chalk box holder is wear resistant and enduring, making it easy to carry. This chalk holder securely holds your chalk in place, preventing it from slipping down and keeping your hands clean during game. Designed for billiards enthusiasts, this chalk holder is perfect for beginner and professionals. Specifications: Materials: Aluminum Color: Black/Dark Green Straightening Length: about 105mm/4.13inch Octagonal Diameter: about 30mm/1.18inch Package Includes: 1pc Billiard Chalk Box Holder note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.