The Foska CK2100 High Density Material Chalk is expertly crafted for versatility and quality, ideal for both educational settings and outdoor applications such as playgrounds and driveways. Made from durable Caso4, this round-shaped chalk is designed to meet EN71 and RoHS standards, ensuring safety for users. Available in five vibrant colors, each chalk piece measures 8*0.95*0.9 cm and is packed 100 pieces per box, weighing a total of 12 kg. Suitable for bulk purchasing, consider stocking up on this essential product for schools, parks, and community centers to enhance creativity and engagement in various activities.