Double-Tip Design The larger pen features a black sponge tip for shadow-side transition and a white felt tip for transitioning halftones into light and dark areas or blending light sides. The smaller pen has a black sponge tip for detailing, helping make your sketches more dynamic and visually appealing. Suitable Size Two sizes to meet different needs: - Larger pen: nib diameter approximately 0.47 inch (1.2 cm); total length approximately 5.9 inch (15 cm) - Smaller pen: nib diameter approximately 0.29 inch (0.75 cm); total length approximately 5.51 inch (14 cm) Reliable Material Made with premium sponge, felt, and a sturdy plastic pole. The black tip is sponge and the white tip is felt, enabling smooth blending of different tones. The plastic handle is durable, comfortable to hold, washable, and reusable. Package Content Includes 6 blending pens in 2 sizes. The quantity is suitable for regular use and art classes, and a valuable addition to your art supplies. Note: the white felt tip may contain some black wool, but this does not affect actual use. Use scenarios - Shading and blending in drawings, comics, and sketches to achieve smooth light-to-dark transitions - Detailing and edge work in portraits or dynamic scene compositions - Large-area blending and tonal adjustments in illustrations and concept art Performance and care - Designed for smooth blending across different tones - Reusable and washable for repeated use This set provides two pen sizes, reliable materials, and a practical double-tip design to support shading, detailing, and tonal work in a range of drawing projects.