Quality Material: the ribbon spools are made of quality plastic, the without burrs, sturdy and , not cause cracks when drilling holes, thick enough to stand both manual and machine application Easy to Use: hold of the thread against the flat part and wrapping it around the center, and the bobbin holds them to the strand, helps you save up space for wires, cords or ribbons, and helps you complete the handmade project efficiently Black Empty Spools: package includes 20pcs black plastic empty spools, about 5.5cm/2.1 inch in diameter, 2cm/0.7 inch thick, inner diameter 2.5cm/1 inch, 28cm/1.1 inch. Provide endless fun and Perfect Design: the plastic spools are in elegant hourglass design, the threads are easier to wrap and easier to distinguish, and the shaft hole of each spool is centered, there be no deviation during use, to unleash your creativity Wide Applications: the empty plastic spools are perfect for organizing thread, wire, twine, cord, bobbin, chains, ribbon and and many other items. Also perfect for DIY arts and crafts making and photo prop. Just unleash your creativity in textile wire weaving and DIY art projects, Weight: 0.43210603352 Pounds, Manufacturer: Yoeruers