With glare-free, matte ferrules, Aspen brushes are great for both indoor and outdoor painting. They retain their shape for precise placement of color, paint releases and glides evenly off the synthetic hairs. The Aspen brushes are best for medium and heavy bodied acrylics and oils. This set of four Aspen travel brushes includes one each of Angle Bright 6, Filbert 4, Flat 6 and Round 2 brushes.