Alright, artists and painters, this one's for you. The Alvin 6100F-20 is a flat brush from the Princeton Series, and it's a workhorse. It's got white synthetic bristles that are interlocked – that means they hold their shape well and give you great control, whether you're laying down broad strokes or doing some detail work. It's designed for both oil and acrylic paints, so it's pretty versatile. The handle is that classic green color, long enough for a comfortable grip. Size is 20, which is a nice medium-large flat – good for covering bigger areas quickly. If you're tired of brushes that shed or lose their edge, this one's built with resilience in mind. A solid, reliable brush to add to your toolkit without breaking the bank.