1The brush is made of high-quality nylon hair, elastic, comfortable handfeel, moderate hardness. 2The pen tube adopts high-grade copper pipe interface, the texture is smooth, and the special technology of the interface is tightly fastened to the pen tip, effectively preventing the pen tip from falling off the pen holder. 3The pen handle is made of high-grade solid wood, healthy and environmentally friendly varnish. The pens are printed with different sizes for easy selection. 4The pen holder adopts the advanced closed process. During the painting process, the water molecules will not enter the wood pole, so the processed pen handle will not be easily cracked and the service life is very long. 5Ideal for Ideal for watercolor painting, oil painting, acrylic painting.