High-Quality Material: dikale 12 Packs PLA 3D printer filament 0.5kg spools are made of premium quality PLA (Polylactic Acid) material. The filament has a precise diameter of 1.75mm, tolerance +/-0.03mm, which ensures consistent extrusion, preventing clogs and other printing issues. Wide Range of Colors: The 12 packs of filament come in a wide range of colors, allowing you to choose the perfect color for your 3D printing project. Assorted color list: black, white, grey, silver, red, orange, yellow, blue, green, purple, brown, glow in the dark.