The Wooster 1" Solvent-Proof Chip Brush is a small paintbrush made specifically for use with solvent-based paints, stains, and varnishes. The term "chip" usually refers to the type of bristles used in the brush, which are frequently formed of natural materials like china bristles or white China bristles. These brushes are renowned for their toughness and ability to endure severe solvents without deterioration. The 1" size denotes the width of the brush, making it ideal for detail work or little projects that demand precision. Wooster is a recognized brand that produces high-quality painting equipment and accessories.