Feature:1. The aluminum alloy interface has a smooth texture and superb splicing technology to effectively prevent the pen tip from falling off.2. Made from high-quality nylon wool, the brush has a uniform color and gloss, and the hair is flexible and elastic.3. A wide range of uses, including a variety of paintings such as gouache, watercolor and acrylic painting.4. The solid wood pen holder is not easy to crack, so the service life is long5. The hair is flexible, with moderate elasticity, good water absorption, and comfortable gripSpec:Item Type: 12Pcs Nylon Wool Watercolor Painting Brush SetMaterial: Nylon wool + Aluminum tube + Wooden poleSpecification: 12 Pcs / SetApplication: Acrylic, gouache, watercolor, etc.Model1＃2＃3＃4＃5＃6＃7＃8＃9＃10＃11＃12＃Length18.4cm / 7.2in18.5cm / 7.3in18.5cm / 7.3in18.5cm / 7.3in18.2cm / 7.2in19.5cm / 7.7in19.7cm / 7.8in19.5cm / 7.7in20.4cm / 8in21.5cm / 8.5in21.8cm / 8.6in22.5cm / 8.9inHair Length1.1cm / 0.43in1.2cm / 0.47in1.25cm / 0.49in1.3cm / o.51in1.4cm / 0.55in1.5cm / 0.59in1.6cm / 0.63in1.7cm / 0.43kin1.8cm / 0.71in2cm / 0.79in2.3cm / 0.912.5cm / 0.98inHair width0.2cm / 0.08in0.23cm / 0.12in0.25cm / 0.10in0.28cm / 0.11in0.3cm / 0.12in0.35cm / 0.14in0.38cm / 0.15in0.45cm / 0.18in0.5cm / 0.20in0.55cm / 0.22in0.6cm / 0.24in1.7cm / 0.67inPackage List:12Pcs Nylon Wool Watercolor Painting Brush