- Wide Compatibility: This 1.75mm PLA 3D pen filament refill set includes 12 colors and works seamlessly with popular brands like MYNT3D, SCRIB3D, and PIKA3D, as well as most 3D printer pens and printers that utilize 1.75mm filament. Note: Not compatible with the 3Doodler Start Pen. - Vibrant Color Selection: The refill package features 12 essential colors, including peach, black, orange, green, yellow, red, white, grey, purple, pink, sky blue, and gold. These options enhance your creative projects and allow for diverse artistic expression. - Premium Quality Material: Crafted from high-purity PLA, these filament refills ensure easy printing with excellent molding capabilities. They provide strong adhesion and toughness, while being clog- and bubble-free, resulting in smooth and precise prints. - Safe and Compliant: Our filament refills meet FDA food safety standards and comply with RoHS guidelines, ensuring a safe printing experience. Start your creative journey with confidence using these reliable PLA filaments. - Ideal Gift Choice: This 3D pen filament refill set makes a thoughtful gift for 3D printing enthusiasts. Perfect for occasions like Children's Day, Christmas, or birthdays, it inspires creativity and innovation. - Dimensions and Packaging: Each filament refill measures 1.75mm and is vacuum-sealed after being completely dried for 24 hours, ensuring optimal performance and longevity.