If you have a brush, you need a stand. It's that simple. Having a stand will extend the life of your brush. When brushes are used, they need to air dry properly to prevent mildew, mould and further damage to the knot and bristles. Hanging the brush to dry is the most effective way to prevent damage to your brush.
I love this stand because it is simple, it is universal and it is affordable. Designed to accommodate most brushes (20mm to 30mm knot) this stand is the last stand you'll ever need.