Enhance your 3D printing experience with Mika3D's PLA filament refills. The package includes 32 vibrant colors totaling 160 pieces, specially designed for 3D printing pen replacement. The filaments have a diameter of 0.3m and are made of high-quality PLA material to ensure smooth and reliable printing. Whether you're a beginner or an expert, these filaments are perfect for creating a wide range of 3D printed projects. Add some color to your creations with this fantastic set from Mika3D.