We use environmentally friendly ink-[ Xylene & Toluene-free ink Conforms to EN-71, ASTMD-4236]XSG Dry Erase Markers low odor and non-toxic ink, it is harmless to Kids. Novel Design:The XSG whiteboard pen has a magnet design and has a strong adsorption force. It can be adsorbed on the whiteboard and refrigerator to prevent loss, and to facilitate the next writing. It also has an eraser design on the top, which can wipe errors in the writing process. XSG Dry Erase Marker tip is round and smooth, and it is mainly used for writing on whiteboards and glass, and can also be used on the refrigerator to record small daily events. Suitable for office, teaching, home use, etc. Assorted Colors:12 Different Vibrant Colors:Red,Orange,Yellow,Grass Green, Green,Royal Blue,Blue,Deep Purple,Magenta,Brown,Dark Brown,Black Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.