Bob Ross - Landscape Brush Set, Oil Based Painting Tools, 12 pieces Designed by Bob Ross for the wet on wet painting technique. Top quality, natural bristle brushes that will achieve wonderful predictable effects. Set contains one of the following: #3 Fan Blender, #6 Fan Blender, Half Size Round, 1" Round Foliage Brush, #5 Detail Knife, #10 Painting Knife, 2" Blender, #2 Script Liner, #6 Filbert, 2" Background, 1" Oval Bristle, and 1" Landscape brush.