1、12 COLORS: Outline markers pens come in 12 different colors to meet a wide range of needs, making your paintings quickly beautiful and eye catching. 2、GLITTER AND SHINE: Outline markers set not only features a double outline design, but also adds a glitter effect to make your work stand out. 3、DOUBLE LINE DESIGN: 12 colors outline markers are different from ordinary brushes, with double outline design, making your paintings more detailed and layered. 4、SUITABLE FOR KIDS: Outline markers are not only suitable for adults, but also perfect for kids. They can try out different color combinations as they wish while painting to make the painting more attractive. 5、LEAKPROOF DESIGN: Outline markers are designed with sealed nib, making it difficult to leak ink. Lightweight and easy to carry.