his DaVinci series 1280 CosmoTop Spin Synthetic Rigger brush in size 0 has a blend of 5 diameters of smooth fibers to hold more paint and water. Thicker fibers are placed on the outside to work with thinner fibers in the middle of the brush tip. This brush delivers a smooth stroke and clean edge, and will hold its shape beautifully through painting, washing and drying.