KILZ MASTER COLLECTION brushes deliver the ultimate in flexibility, performance and durability to provide professional results and make it easier to complete your project. This professional quality flat paint brush is handcrafted with a precision blend of nylon and polyester filament and a quality metal ferrule for use with all paints and stains. Flat paint brushes are ideal for painting large flat surfaces and can be used with both acrylic and water based paints and stains or oil-based paints and stains. To maintain the brush's high level of performance, clean immediately after use and do not soak in water or solvents as this may damage the filament and bristles and cause the ferrule to rust. Use soap and water to clean latex/water based paints, and mineral spirits to clean oil-based paints. Avoid letting paint dry on the edge of the ferrule/ center of the brush. KILZ has been making premium primers and paints for 40 years. KILZ MASTER COLLECTION offers a variety of premium paint brushes, rollers, mini-rollers and assemblies for every project. For best results, use a brush comb when cleaning. Store brush flat or suspended in its original package or wrap in foil or heavy paper to maintain shape. This is a 2.5-inch wide, flat paint brush for all purpose painting. The brush measures 9.8 inches long and 0.5 inches thick.