Complete Pottery Painting Kit: This set includes two versatile black underglaze pens, eliminating the need for separate purchases. Each pen is designed for both fine and thick line work, making it ideal for detailed designs on ceramics, enhancing both tactile and visual appeal.High-Temperature Resistant: Made from premium materials, these pens withstand firing temperatures between 2102°F and 2336°F (1150°C–1280°C). This ensures vibrant colors remain brilliant and unfaded after firing, suitable for both amateur and professional ceramic artists.User-Friendly Design: To use, simply shake the pen and test it on paper until ink flows smoothly. Avoid excessive pressure to prevent ink seepage. Designed for smooth, continuous drawing without lingering too long on one spot.Versatile Application: Ideal for a wide range of ceramic surfaces, these underglaze pens are perfect for use on cups, plates, bowls, and more. Great for outlining, tracing, drawing, writing, and customizing DIY ceramic projects with ease.Note: Slight color variations may occur between the product image and actual item. This does not affect performance or usability.Color: Black Material: Plastic Package Contents: 2 x Underglaze Pens Note: Light reflection and differences in display screens may cause slight color variations between the image and the actual product. Measurement error allowed is +/- 1-3 cm.