These Nail Polish Pens apply a quick drying, non-toxic, coat of polish that is easy to remove. Only one layer application is necessarily for that great look for your pampered pup. On dark nails, we suggest doing a base coat of white first and then a color for a better results.Directions: Nail Polish must flow from pen nib for proper applications. FIRST USE: Shake pen well, remove cap, press nib of pen straight down on a protected surface until nib depresses slightly into body of the pen. Pen is ready for use when nib is all wet with polish (About a minute). SUBSEQUENT USE: Shake and depress nib to freshen with polish before use. TO REMOVE: Use non-acetone polish remover and rinse off. Buffing block will also work.Ingredients: Water, Acrylates, Copolymer, Propylene Glycol, Propylene Glycol Butyl Ether, Dipropylene Glycol Butyl Ether, Trimthyl Pentanyl Disobutyrate, Sodium PCA, Ammonium Hydroxide, Butoxyethanol, Alkylaryl Polyether, Simethicone, Glutaronite, Quinacridone Violet 19