... light.4.6 (pink, red, green, blue, yellow, white,) color fluorescent mark pens (8 color is optional if you need)specificaton of our ... and beautiful.4. Convenience: easy to assemble and change the color and content. 5. Balance light: light is rather balance, ... unpleasant the eyes.6. beautiful in design: adopt advanced electrophoretic techniques equitable design and the color will never change and the ...