Features: Excellent material: The sponge material is has good elasticity and softness. Not easy to be deformed, safe, durable and practical to use. Designed for those who sketching, easy and convenient. Wipe evenly and delicately: The wiping is gentle and delicate without hurting the drawing paper.Easy to wipe and effortless. Suitable for professional or personal use. Washable and Reusable: It does not contain latex and can be washed and used repeatedly. The essential tools for painters and painting lovers. 3 Sizes: Assorted sizes can meet your desire of painting, allows you to blend even the most detailed area as well as a large area,very suitable for students, artists, drawing beginners to sketch or paint details. Versitle Use: perfect for art drawing to soften lines,mix colors and create shadows and dark areas, blur effects,add a dim or soft effect to your drawings; for those thinner areas of the painting, you can delineate textures and patterns where the lines are already finished. Specifications: Material: Plastic Small Length: Approx. 140mm/5.51 inches Medium Length: Approx.145mm/5.71 inches Large Length: Approx. 148mm/5.83 inches Package Includes: 3 Piece-Set Art Sketch Pen Brushes note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.