Satisfy Your Large Needs: each package includes 120 3D pen filament refills, providing ample supply for extensive projects and shared creativity; These 3D pen refill packs are ideal for long term use or as a generous resource for group activities, ensuring that you never run out of inspiration 3D Pen Refills: our 3D pen filament refills are compatible with 3Doodler Start 3D pen; With a thickness of approximately 2.5mm, these 3D doodler pen refills ensure seamless performance and compatibility, offering an ideal fit and smooth creativity PCL Material: benefit from the quality PCL material of our 3D pen filament refills, known for its low printing temperature; This feature enhances safety and usability, providing an optimal crafting experience while ensuring durability and strength in your creative projects Various Color to Choose: our 3D pen filament refills include 32 mixed colors, including 24 vibrant solid colors and 6 glow in the dark colors; Ideal for artists and hobbyists, these 3 Doodler refills allow you to bring your most colorful designs to life with ease and flair Ideal Gift Choice: delight artists, designers, and enthusiasts with these 3D doodler pen refills; A thoughtful and creative gift, these 3D pen filament refills inspire innovation and enable endless possibilities, making it an ideal choice for birthdays, holidays, or special occasions Features: Enhance Creative Potential: Unlock your artistic potential with 3D pen refill packs, ideal for crafting detailed models and art pieces Exclusive 3D Pen Support: Our 3D pen refill packs are exclusively compatible with the 3Doodler Start 3D pen. This ensures consistent quality and results, designed specifically for your device's capabilities, delivering a nice drawing and crafting experience every time you use these 3D pen filament refills. Specifications: Material: PCL Color: 30 colors Size: around 2.5mm Millimeters Package includes: 120 X 3D pen filament refills Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.