Designed by master pin striping legend, Steve Kafka, this brush will unlock the mysteries of his style and enable the user to stripe curves as never before. This brush does it all. - Kafka Design Pinstriping Brush - Striper, Size 5NO 5 RD - The size 5, which is slightly larger than the size 3, holds more paint and will accomplish heavier designs with ease. Depending on pressure, the line thickness can reach 1/4" and fine lines to 1/16" in the other direction. This brush is a favorite for outlining larger flame layouts, cars, trucks, and semi trucks.