Features: brand new and high quality DETACHABLE INK SAC, EASY TO REFILL. Features sturdy metal pen clip and removable ink absorber, this piston-filled calligraphy pen is easily refilled by twisting the knob to extend the piston, submerging the nib in ink, then screwing the knob tight to retract the piston, drawing ink into the pen straight from ink bottle. No need for cartridges or a converter! EXCELLENT BIRTHDAY GIFT. Wonderful choice for student, women, men, beginner, writer, pro painter, artist and anyone who likes ink painting and chinese calligraphy. for Ideal for Christmas, New Year, Birthday, Anniversary, Children's Day gift supplies. FOUNTAIN PEN-LIKE DESIGN. The brush tip adopts nice synthetic fiber which can distribute ink evenly. The nylon hair is soft, flexible, and easy to wash. No matter beginners or professionals, both can easily write fine to large broad line with it. PISTON DESIGN BRUSH PEN. This piston-filled calligraphy brush pen is made of high-quality resin material, lightweight and durable. for Ideal for student, children, adult and beginners practicing wirting. Transparent barrel design makes it easier for you to see how much ink is remaining. WIDE USE METHODS. 9 colors optional. for Ideal for calligraphy practicing, lanscape painting, detail lining, signature, writing letters, wirting Chinese characters, Greeting cards, Thanks cards, etc. Specifications: Material: Resin+Fiber Color: Pink; Gold Yellow; Grass Green; Purple; Red; for Sky Blue; Green; White; Yellow Pen Length: Approx. 14.3cm/5.63in Weight: Approx. 20g Package Includes: 1 Piece Calligraphy Brush Pen note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!