Children's water soluble chalk blackboard brush color friendly water soluble paint brush Material: Plastic Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) Package weight: 300g Package size: 30x13x3cm,(Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering.) Easy To Use--The Dustless Chalk Is Easy To Write And Color,writting Clear,you Can Wipe With Water-based Eraser Or Soft Damp Cloth It Off Chalkboard Or Whiteboard. 12-Pack,12-Colors--The Chalk Colors Are Good And Bright,with 12 12 Colors,your Kids Can Draw Fantastic Color In Artwork And ,bring You And Kids More Funny And Creativity In Writting And Drawing. Material--The Colored Chalk Made Of Tasteless Polymer Nanomaterials,not Easy To Break,with Plastic Cover Can Your Hands, For Your Kids To Use. Twistable--Colored Chalks Holders Is Twistabl With Plastic Pen Cover,easy To Hold, Avoid The Chalk And Keep Hands Clean.. Wide Used--Super Smooth Easy Glide,pefect For Boys Girls Children Writing,drawings,,ideal For School,home,office,meeting Room And Artwork Use,write In Any Smooth Surface,such As Whiteboard,blackboard,chalkboard,window,wall,cardboard,paper,doodling,wood And So On.