Product Material: This mixing pen holder is made of compressed paper + ABS material, which is strong and not easy to bend. It is small and exquisite, and more convenient to use. Multiple Sizes: The mixing pen has eight sizes, the small size of the silver black eraser is 14 x 0.6cm/5.51 x 0.23 inches, and the large size is 14.7 x 1.2cm/5.51 x 0.47 inches; the sandpaper board is 16 x 2.9cm/6.3 x 1.14 inches; the pen holder is 13cm/5.11 inches long. Sandpaper Board: This colorless mixer set for colored pencils contains a sandpaper pencil sharpener, which can sharpen your charcoal, pencil or pen tip and brush, make your charcoal, pencil or mixing pen holder , and grind solid pigment into powder. It is an essential tool for sketching and painting. Package Content: You receive 9 mixing pen tips (#1, #2, #3, #4, #5, #6), 2 silver black erasers and 1 Sandpaper boards, multiple sizes are enough to meet different aspects of your sketch works. Widely Use: Paper blending sticks and blending sponge pens are suitable for art drawing. They can soften lines, blend colors, create shadows and dark areas, blur effects, and add dim or pastel effects to your drawings, which are essential tools for painters and painting enthusiasts. Product Name:Blending Stumps Colour:As Shown Material:paper Package Contents: 1 * Blending Stump kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.