Applicable materials: fluorescent board, led board, store glass, window , blackboard, white board, green board, car window, stone, wood plank, plastic bottle, bottle, metal, etc. Product Size:3mm/0.1" Applicable scenes: DIY, teaching, painting, led fluorescent advertising, body creative, etc. 8 colors liquid chalk choice. Description ： The product is composed of and materials. Round head and head can be exchanged freely. Material (composition): PVC This product has bright colors, smooth writing, and ink. Applicable gift-giving occasions: opening , employee benefits, awards commemoration, anniversary celebrations, trade fairs, advertising , festivals, weddings, public relations planning, housewarming, birthdays, business gifts. Package Included: 8 PCs Liquid Chalk Mark Applicable Materials: Fluorescent Board, Led Board, Store Glass, Window , Blackboard, White Board, Green Board, Car Window, Stone, Wood Plank, Plastic Bottle, Bottle, Metal, Etc. Round Head And Head Can Be Exchanged Freely. This Product Has Bright Colors, Smooth Writing, And Ink. 8 Colors Liquid Chalk Choice. Product Size:3mm/0.1"