Black Empty Spools: Package includes 20 pcs black plastic empty spools, approximately 5.5 cm (2.1 inches) in diameter, 2 cm (0.7 inches) thick, with an inner diameter of 2.5 cm (1 inch). Quality Material: These ribbon spools are made of durable plastic, smooth without burrs, sturdy and resistant to cracking when holes are drilled. Thick enough for both manual and machine use. Perfect Design: The spools feature an elegant hourglass shape that makes thread wrapping easier and helps keep threads organized and distinguishable. Each spool has a centered shaft hole to prevent deviation during use, supporting seamless performance for your projects. Easy to Use: Hold the thread against the flat section and begin wrapping around the center. The design secures the thread in place, helping you save space when storing wires, cords, ribbons, and more. Ideal for efficient handling in crafting tasks. Wide Applications: These empty plastic spools are ideal for organizing thread, wire, twine, cord, ribbon, chains, and other small materials. Suitable for DIY arts and crafts, textile weaving, and as photo props. Encourage creativity in various handmade projects. Color: Black Material: Plastic Package Contents: 20 x Empty Spools Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement allows an error of +/- 1-3 cm.