Expansive color range: 30 unique colors that spark imagination and elevate projects with prints that reflect your style. Sustainable construction: Made from material, these filament refills offer a safe choice for various applications while remaining easy to shape and design with. Easy to use with any 75mm pen printer: Compatible with all 75mm pen printers, this product is for both beginners looking to explore and seasoned users seeking quality results. Use scenarios gifts and home decor: Create items for gifts or display in your space. Rapid prototyping and design iteration: Use multiple colors to differentiate components and iterate ideas quickly. Education and workshop activities: Ideal for classrooms or maker spaces to teach color variety and handson printing skills.