Enhance your 3D printing experience with these 20 empty 3D printing filament cardboard spools. Suitable for PLA, PETG, and ABS filaments, these spools have a diameter of 1.75mm and are mostly black in color. Each spool has a height of 8 inches, a length of 8 inches, and a width of 2.5 inches, making them perfect for organizing your filaments.

These spools come in random colors and are made of high-quality cardboard material, ensuring that your filaments are well-protected. They are ideal for home or office use and are compatible with various 3D printers. These spools are sold as a unit and are perfect for those who are looking for an eco-friendly and cost-effective solution for their 3D printing needs.