32T Eye Brush ($14.00) is made out of Taklon (synthetic) bristles, and it is designed to be used with gel eyeliner or for precise lining. It is a very small brush at a mere 6mm tall, 4mm wide, and 2mm thick. It’s a flat, firm brush that comes to a tapered point. If you have smaller eyes and need something to apply cream or gel products, this might be useful. I don’t have Duraline, but I could see how this would be useful, as Duraline is a liquid product that “transforms any powder into an intense, easy to apply liquid,” so this would work well for mixing.