Description: Product Type: This product is a chalk powder box, an essential accessory for billiards and table tennis games.Material: The product is made of aluminum alloy and PP, ensuring durability and longevity.Product Dimensions: The chalk box has an outer diameter of 3cmx3cmx1.6cm and an inner space of 2.4cmx2.4cm1.2cm, while the chalk clip is approximately 6cm long.Portable:This billiard chalk clip adopts professional technology, very sturdy, lightweight and small size, portable.Versatile Use: This square chalk clip is fit for both professional players and hobbyists alike, enhancing your gaming experience by keeping your chalk handy at all times. Specification: Material: Aluminum Alloy and PP Size Chart: Outer Diameter:3cmx3cmx1.6cm/1.18inchx1.18inchx0.63inchInner Diameter:2.4cmx2.4cmx1.2cm/0.94inchx0.94inchx0.47inchThe Length of Chalk Clip:6cm/2.36inch Package Includes: 1Chalk Clip1 Chalk Case1 Wrench Note: Please allow slightly errors 1-2cm differences due to manual measurement.