Features: Heat Fading Technology: Utilizes heat fading technology to secure grades vanish lacking remainder, ideal for sketching and teaching demonstrations. Retractile Planumberebog: Features a retractile mechanism that eliminates the need for sharpening, enhancing efficiency for memos and meetings. Green Candlewax Centerebog: Produced with green candlewax substance, providing a smooth writing knowledge while reducing environmental effect. Permanent ABS Shell: Constructed with a robust ABS shell, offering excellent drop resistance and extended durability for daily use by learners and teachers. Multiple Functional Usemail: Developed for flexibility, suitable for various settings from classrooms to offices, providing to varied user demands. Specifications: Substancemail: ABS shell possesses good wear resistance and effect resistance, ensuring the durability and service life of the product. Processecond: Fixing device disappearance technology is embraced, and scratches can automatically disappear, maintaining the writing face neat. Dimensionsecond: Ergonomic plan for comfortable and writing. Package Includes: Telescopic scratching shell × 2 Invisible painting chalk refill × 20 note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color