The Princeton Aqua Elite Synthetic Kolinsky Sable Watercolour travel Brush Set is made up of 4 innovative, pocket size, brushes that are indistinguishable from Natural Kolinsky Brushes. These Brushes  hold great amounts of water and are not only durable, but animal friendly as well. The travel brushes are made to be compact, featuring a body that doubles as a storage capsule to ensure no brush ends are damaged in transport. They come in a leather case with a magnet enclosure. Set includes Travel Rounds 4, 6, 8, 10. Best results with Watercolour or gouache paints.