Allowing you to create wherever you are with high quality brushes, the Princeton Neptune Travel Brush Set is compact and convenient for watercolor painting. The 4750 Series Neptune are synthetic Squirrel short handle brushes. These durable brushes hold the most water and are soft and supple with an even release of color. The travel brushes can be disassembled to protect the tip inside the hollow handle while carrying them and will stay secure in their case. The Set contains four round brushes in sizes 4, 6, 8 and 10.