Case of 3 da Vinci Spin Vegan 4252 watercolor brushes Synthetic brushes. Cosmotop Spin is da Vinci's best-selling 5-diameter synthetic line. Designed for use with watercolors and wash techniques. They are presented in a practical and elegant cardboard box with magnetic closure. Includes 3 brushes: - 1 round brush Spin Synthetics Series petit gray 488 no. 2. - 1 Beveled Brush Series Cosmotop Spin 5587 No. 10. - 1 Cat's Tongue Brush Series Cosmotop Spin 5584. Brand : Da Vinci.