Features: With large capacity, each pen can hold more inks, reducing the hassle of frequent replacement. for users who need to write or draw for a long time, such as teachers, designers, to make the creative process smoother. plastic to ensures durability and environmental friendliness of the product. Compared to traditional metal pen holders, it is lighter and easier to carry, for students and office workers to use in different situations, whether in the classroom or conference room, it can be easily handled. with empty pen holder, it can be filled with inks of different color according to needs, achieving pen holder. Solved the limitation of using monochrome pens and for work scenarios that require multi-color marking, such as project management and teaching demonstrations. The ergonomic grip design provide a comfortable writing experience and effectively alleviates fatigue caused by prolonged use. for users who require a large amount of writing, such as journalists and researcher, to improve work efficiency. Equipped with a transparent window, realtime monitoring of inks levels to avoid the embarrassment of sudden inks interruption. for professional who require precise control over the statuses of writing instruments, such as architects and artists, to ensures uninterrupted creation. Specifications: Materials: Plastic Size: 137x20mm Package Includes: 10Pcs Marker Pens Rods note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.