da Vinci Watercolor Series 315 Student Paint Brush, Round Mixed Squirrel, Size 6 (315-06) The thick reservoir of the belly is designed for maximum water holding. A highly elastic brush that is more affordable in larger sizes for wash and mop techniques. A highly elastic brush that is more affordable in larger sizes for wash and mop techniques. For Watercolor, Gouache, Fluid Acrylic or Porcelain Painting. Certified green manufacturing with sustainable wood handles, made in germany.