First wash and disinfect your hands, and correct the shape of your nails with a sanding strip. The coating is coated with calcium primer on the nail surface. Dip a little nail polish on the top of the nail tip, and then paint the reverse side of the nail tip. Rub the middle of the nail, and the brush should be slightly flat, and the brush head should be slightly pressed open. Paint the left side of the nail, then the right side of the nail. Apply a second thin coat of nail polish. After applying nail polish, if excess nail polish overflows, use a label dipped with nail polish remover to wipe off excess nail polish. Apply another layer of bright oil.