Shuttle Art Extra Fine Sign Name Permanent Suitable for Writing on Instax Photos and Ideal for School and Office Use Oil-Based Pens, Black, 30-Pack,

[Black 30-Piece Set] This set of 30 black marker pens is perfect for office work, keeping at home, or sharing with friends. It's also reassuring to have spares at work, at home, and in your pencil case in case you lose one. A clear case is included for convenient storage. 【High Quality】From the comfortable grip and pleasant feel of the body to the brilliant colors and smooth writing experience, every detail has been carefully considered. It is also quick-drying and water-resistant. Compared to other brands, it is more durable, less prone to fading, and can be for a long time. It also conforms to the USA quality and safety standards ASTM D-4236 and EN71. It is non-toxic, acid-free, and environmentally friendly. 【Multipurpose】This pen can be not only on instant cameras, photos, DVDs, CDs, milk cartons, plastic sheets, cellophane, and plastic, but also on wood, stone, metal, and most other surfaces. It's suitable for doodling, sketching, designing, graphing, adult and children's drawing, underlining, marking, drawing practice, masking, and more. It's a versatile stationery item that's perfect for schools, tutoring centers, offices, and homes. 【Ultra-fine nib】With a 0.5mm nib, it's perfect for detailed drawing and allows you to express delicate details. The nib is hard, so it's less likely to break or get crushed. It's widely popular for children's crafts at school, as well as for office work and studying. @Note: Please close the cap when not in use to prevent the pen from drying out. [Satisfaction Guarantee] If you have any problems with the product or any questions, please feel free to contact us. We will respond promptly and courteously within 24 hours and provide a solution within 48 hours. We will continue to assist you until you are satisfied, so please rest assured. Shuttle Art Oil-Based Markers, 30-Pack, Extra Fine Tip, Black. Suitable for graffiti and marking on plastic, wood, stone, metal, and glass.