DescriptionThese chalkboard chalks are made of gypsummaterials, safe, and durable. In addition, the gypsumchalkwrites smoothly and comfortable to use. Using thesechalks, you can make stunning masterpieces on most surfaces such aswhite boardand chalkboards.Features-Color:Assorted Color-Material:Gypsum- Size: 19.50X11.00X7.50cm/7.66X4.32X2.95in - Chalk is designed to be clean and easy to use, come with chalk holder for easy to use.- Sufficient quantity to satisfy your daily requirements for usage and replacement, meeting your diverse needs.- Chalk set, perfect for use by teachers, students, artists, and anyone else who wants to write or draw with ease and cleanliness.- The included chalk holder is convenient to use and clean, and can prevent the chalk from cracking.- With multi colors, use thischalk set to draw your own masterpieces.Packing list100 x Chalks5 x Chalk Sleeves1 x Eraser1 x Box