The 1" width is a detail brush -- narrow trim, cabinet edges, molding profiles, corner cut-ins, and small touch-ups where a wider brush would overshoot. The 4-pack is a bulk supply for craft classrooms, staining sessions with multiple colors, or ongoing touch-up work where you keep a fresh brush per color or per session. Poly-Brush by Jen is a throw-away polyurethane foam brush that smoothes out the paint and covers correctly with fewer strokes, eliminating brush marks and loose bristles.

• Made from Jen's specially patented polyurethane foam
• Ideal for the application of enamel, latex, oil paints, stain and varnish
• Jen does not recommend using its products with shellac or lacquer
• Covers correctly with fewer strokes -- no brush marks, no loose bristles
• Wood handle
• Throw-away construction -- no cleanup required
• Width: 1"
• Sold as a 4-pack
• Made by Jen Manufacturing, a Worcester, Massachusetts manufacturer since 1957

Best For: Craft classrooms, hobby projects with multiple stain or paint colors, ongoing touch-up kits, and bulk detail work where one brush per color saves cleanup and cross-contamination.