2 The writing feel is more delicate, easy, and effortless than traditional chalk, and it feels like a crayon when pinched in your hand.5 It is truly 100% -. No is generated when writing and wiping.Pen status: 100% new.3 The color is brighter and brighter, durable and not broken.Writing fluently.Decription：Give your child a colorful world.Dust- chalk.4 Don't burn your hands.1. water-soluble chalk can be used on glass, plastic plates, plastic films, whiteboards, green plates, steel plates, cement plates, etc. All schools can be used directly. Created favorable conditions for general .6 You can write after wiping with a wet board. You can write on both wet and dry boards.What is the water-soluble chalk?Let your children learn more about the fun of writing and drawing.Package:12pcs Dust- Chalk