Features: brand new and high quality UNIVERSAL CHALK HOLDER. This clear chalk holder length 9cm/3.54''; diameter 1.5cm/0.59''. Fit for most dustless chalks. ADJUSTABLE DESIGN. Convenient twist up design chalks with plastic pen barrel for extra durable, not only saving chalks but also It can long-term use not broken. SIMPLE&PRACTICAL. Made from high quality plastic material, reusable and durable. Non-toxic and safe. MULTIPLE USE METHODS. Refillable and reusable. The chalk holder is suitable for diameter 0.3"~0.39"chalk. Perfect for home, office ,school, class, blackboard, lectures and more, NOTICE. Each package comes with 1 piece chalk holder, dustless chalk not inluded. Specifications: Material: Plastic Color: Transparent Size: Approx. 9x1.5cm/3.54x0.59in Weight: Approx. 7g Package Includes: 1 Piece Chalk Holder note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!