BRUSH BASICS Size 1″ – 1 1/2″Ideal for detailed work, spindles and small projects. SHOW 1" - 1.5" BRUSHES 2″ – 2 1/2″Most versatile for walls, cabinets and trim. Show 2''- 2.5'' Brushes 3″ – 4″Great for siding, decks and fences. Show 3'' - 4'' Brushes