This brush set contains three of the most often used brushes and knife in the Bob Ross Wet-on-Wet Technique. The 2 Background Brush, 1 Landscape Brush and the #10 Standard Painting Knife. The Bob Ross landscape brushes are special brushes made from a blend of natural and synthetic bristles and shaped according to Bob's very precise specifications for the Bob Ross Wet-on-Wet Technique. This knife works like magic! Straight-edged blade is unique to the Ross painting method. Special value pricing!