Bright Water Based Eyeliner:4 cakes can glow in dark under UV light.It is water based,so it is not waterproof.All 8 colors are vivid bright vibrant colors.Applied smoothly and dried fastly.Easy to remove by water. Highly Pigmented:A very pigmented eyeliner.The more you layer the more pigmented of it.Easy to be blended with. Super Value:Compared to most liquid eyeliner,these one has a high capacity.After added some water to use it,you can use it for a long time. How to use:Wetting the coming brush firstly and then mix the paint directly in the pan or apply a little water(2-3 drops are OK) on it and then stir the color cake with the coming brush.Do not add too much water.Better to get some gel-like eye primer for it. Safe,Non-toxic and Widely Use:The formula is hypoallergenic, non toxic, safe for face or body painting on all skin types.It is not only for eyes,but for face and body paint too.Suitable for many accosions,such as fancy ball, parties, Halloween,Christmas, New Year, Birthday, Club, Events, etc