Features: Colored Liquid Chalk Markers with washable and erasable water-based inks for versatile use on chalkboards, window, and LED acrylic sign, square tip ensures bold, fluorescent writing visible in low light environment. Features quick drying inks and light weight PP plastic body, these refillable liquid chalk pen with 15mm line wide, which deliver evenly coverage on glass, signage, and educational writing drawing boards while allowing effortlessly cleanup. Suitable for teachers creating dynamic classroom visuals, children doodling and drawing, artists designing art murals, and retailers crafting eye catching promotional display. Transform store window into glowing advertisements, annotate laboratory equipment with temporary labels, or decorate Wedding Sign, birthday party Sign, bistros board, back-to-school sign, LED board, with reusable liquid chalk pen. The flat square shaped tip enables both broad strokes for filling large areas and controlled edges for detailed lettering on multiple surfaces. These wipeable window marker pen not only work on chalkboards, but also glass, ceramic, whiteboard. Specifications: Component: Plastic Color: Pinkness, Purpler, Yellow, Redness, Blue, Green, Tangerines, White, Black, Gold, Silver, Grass Green Size: Approx. 140x16mm/5.51x0.63in Weight: Approx. 60g Package Includes: 1Piece Liquid Chalk Marker note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color