These beautiful pigments are specifically designed and hand choosen by MRS.COLORBERRY for colouring resin. The colors are highly concentrated, so a small amount goes a long way. They can be used in varying amounts to create multiple shades/transparencies from the one colour. Use a less to create a translucent colour and add more pigment to create an opaque colour. Mix each jar before use. All colours can be mixed to create your own unique colours!