There are 20pcs dustless chalks, and washable. You can or paint smoothy on most chalkboards. It's easy to wipe also, white colors, perfect for preschoolers or elementary students to draw on blackboards, chalkboard, sidewalks, backyard, patio, playgrounds and driveways! Features - Color: White. - Material: High-molecular polymer. - Size: 1 x 1 x 7.8 - 20pcs and washable dustless chalks, white colors, easy for you to write and paint. - and the size is perfect for toddler's little hands! - Water soluble dustless chalks, easy to wipe and conveninet for your next writing and painting on the same blackboard. - Perfect for preschoolers or elementary students to draw on blackboards, chalkboard, sidewalks, backyard. - This set of white dustless chalks will the fun in learning time. - A nice chalk you to write, paint, draw pictures on the blackboard, chalkboard, floors, walls, etc. - Warm tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 20 x Dustless Chalks