DIY by Maddie Rae, Refillable Water Color Brush Pen Set of 12 (3 Different Thicknesses & 4 of each Sizes) Multi Purpose Artist Grade Watercolor Brushes for Water Color Painting & Lettering. POINT TIP BRUSHES: Set of 12 Brush Pens - 4 Small 3mm point, 4 Medium 4mm point, and 4 Large 5mm point. Great for art students, amateur and professional artists. NO SPREAD OR SMEAR: High quality nylon hair brush tips that stay intact and do not spray, spread, or smear while in use. EASY TO USE: Simply add ink or water to the pen and squeeze barrel to easily control the flow. Blend with water or add ink for easy, fast and fun painting. EASY TO CLEAN: Simply clean by rinsing under water and setting aside to dry. MULTI USE: Great for watercolor, solid colors, pencils, and powered pigment to spread and smooth colors. Maddie Rae is the brand crafters trust. Maddie Rae, a teen slime glue entrepreneur and Guinness World Record Holder, successfully launched her own line of slime glue and accessories in 2016. She has recently diversified her line to include DIY arts and crafts. For me, DIY is all about having fun and creating something unique. My products are all raw materials, so you have the choice to mix, match, and be creative! – Maddie Rae