Excellent material The sponge material has good elasticity and softness. It is not easily deformed, safe, durable and practical to use. Designed for sketching, it offers easy and convenient use. Size versatility Available in sizes that meet painting needs, it can blend both tiny details and large areas. Very suitable for students, artists and drawing beginners to sketch or paint details. Washable and reusable Latex-free and washable, it can be used repeatedly. An essential tool for painters and painting enthusiasts. Gentle and even application The wiping is gentle and delicate without damaging drawing paper. Easy to wipe and effortless. Suitable for professional or personal use. Use scenarios - Detail shading in pencil, charcoal or pastel work to create smooth transitions. - Blend colors in watercolor, ink, or acrylic washes for even tones. - Apply broad tones and smooth edges on larger areas in drawings or finished artworks.