Features: Smoothing writing: 0.38mm nib. Smoothing and long-lasting, refillable ink dries fast, is less prone to smudging, and delivers vibrant colors. Soft Non-slip Grip: The ergonomic grip provides a super soft and comfortable touch, making each pen easy to hold. Retractable Pen: Easy to use without worrying about the tip breaking off. Replaceable Ink-Sac: Simply press the ink-sac into the pen and hear the click to install. IDEAL GIFT CHOICE: This pen is an excellent gift for students, teachers on Christmas, Teacher's Day, Birthday, Thanksgiving and other festivals. Notice:1.Actual color may be slightly different from the image due to differentlight effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Plastic/sponge Pen tip: 0.38mm Purchase note: Please note that the color corresponds to a pen and there is no ink. If you need ink , please purchase them together Please note that the color corresponds to a pen and there is no ink. If you need ink , please purchase them together Please note that the color corresponds to a pen and there is no ink. If you need ink , please purchase them together If you have a corresponding refill at home, you can skip the purchase. Thank you !