This comprehensive set includes 16 refillable paint pens in three tip styles: 6 round head (3mm/0.12"), 6 tilted head (6mm/0.24"), and 4 flat head (15mm/0.59"). Premium Material Construction: Crafted from durable PP plastic tubes with polyester-acrylic nibs and internal steel mixing balls. These materials ensure smooth ink flow while preventing paint solidification. The sturdy construction withstands repeated use and refilling, maintaining consistent performance across different painting applications. User-Friendly Refill System: Features transparent tubes for easy ink level monitoring and simple twist-off nib mechanisms. The included dropper facilitates clean paint transfer, while the steel balls automatically mix pigments. Designed for effortless refilling and maintenance, making them accessible for both beginners and experienced artists. Versatile Media Compatibility: Compatible with various paints and inks including acrylics, oils, watercolors, stains, and dyes. The different tip configurations accommodate detailed work, broad coverage, and angled applications. Suitable for canvas painting, touch-up projects, illustration, crafts, and decorative art techniques. Multi-Purpose Applications: Ideal for artistic creation, furniture restoration, automotive touch-ups, craft projects, and educational activities. The refillable design reduces waste while allowing custom color mixing. Perfect for artists, DIY enthusiasts, and professionals seeking flexible painting solutions across different surfaces and mediums. Color: As Shown Material: plastic Package Contents: 16*pcs refillable paint pens Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.