【Set&Size】:20 Pcs Paint Brushes Set with 10 Different Sizes for classroom or other normal use supplies. Tips for use: Clean the Brushes immediately after using them. Never leave your brushes resting on their heads in water, solvent, or when drying. Store clean brushes vertically, head-side-up or horizontally. 【Gold-plated Aluminum Tube Interface】:The brush head and handle are connected by aluminum tube,it has double fastening and smooth surface,not easy to rust.And it prevents the brush head from falling off,making it durable to use. 【Durability and Connection Design】:The advanced gold-plated aluminum tube interface connecting the handles to the brush hairs ensures durability. This design minimizes the risk of brush hairs falling off, contributing to a longer lifespan for each brush. 【Nylon Brush Hairs】:The nylon brush hair are heat resistant,wear resistant and flexible.They have strong adsorption,the coloring is full and even,suitable for gouache,oil,acrylic and other pigments.And they are easy to clean after using. 【Widely Used】:This paint brush set work in all mediums, including acrylic, watercolor, oil and gouache paints. Everyone can apply it to body face, decorations, figurines and nail art, enjoy the fun of painting.