Catalyst Long Handle Filberts come in 6 sizes:
Catalyst Polytip Bristle brushes are another Princeton breakthrough that advances the science of synthetic hair. For the first time, the tip of each individual hair has been split to replicate the natural flags on the finest natural bristle. By giving each individual hair 2 to 3 distinct tips, Catalyst is able to hold a higher volume of paint while providing a smoother application.
Next Gen Synthetic
Flag tips to replicate the best Chungking Bristle
Best color holding capacity and shape retention.