GENERAL PENCIL-The Master's Brush Cleaner and Preserver. Keep your brushes looking like new with this specially formulated brush cleaner and preserver. It's made for removing today's paints including oil; acrylic; and watercolor. It even restores hard oil paint brushes all with no thinners or harsh chemicals-just use it with water! This package contains twelve 2-1/2oz tubs of cleaner. Conforms to ASTM D 4236. Made in USA.