HJL Hair Joy Love EASY HAIR COLOR COMB Ammonia-Free Silver Hair Dye Kit, 6.8 Fl Oz. Easy to use at home salons. As easy as combing hair. It will turn out the most accurately on hair which is N°8 or lighter. Enjoy your chic gray silver color. Tips: Check original hair color refer to the color guide. Combing your hair gently. Make sure there are no tangles left in your hair. Advice of use volume and hair length: Short hair --- 1 PCS. Shoulder length hair --- 2 PCS. Long hair --- 3+ PCS. IMPORTANT: Please read all labeling and instructions completely.