Unleash your child's creativity with the STAEDTLER 3001 Marsgraphic Duo Double-ended Watercolour Brush Pen! Perfectly crafted for young artists aged 0-10 years, this innovative pen features two versatile tips: a flexible brush tip for bold, sweeping strokes and a fine tip for detailed work. Both tips are designed to work wonderfully on most watercolour papers, encouraging a myriad of watercolour effects from broad washes to precise lines. The brush tip's line width ranges from 1.0 - 6.0 mm, while the fine tip offers a narrower spread of 0.5 - 0.8 mm, making it ideal for refining those intricate details.Packaged in a handy wallet, this set includes 18 vibrant, double-ended watercolour brush pens. Each pen is built to last, combining durable materials with easy maintenancesimply cap tightly after use to ensure longevity. Light and portable, these pens can accompany your child anywhere, fitting easily into backpacks for art on-the-go. Not only do they foster artistic expression, but they also aid in the development of fine motor skills and color recognition. A fantastic tool for budding artists, the STAEDTLER Marsgraphic Duo nurtures creativity and educational growth through safe, engaging, and interactive play.