Old Masters Brush Set- Eight Hog Bristle Brushes Old Masters Brush Set Bristle 8 PC for Oil and Acrylics-Long Handles! Nicole quality Old Masters Brush Set 8 PC. Long handles with the largest brush measuring over 12" long! For oils and acrylics. Set contains 1 each: Rounds #4, 6, 7, 9, and Flats #4, 8, 12, 20. These brushes offer interlocked construction, which provides superior spring and shape retention.