Plastic clip is approximately 6.8cm long. Suitable for almost all reels. Made of high quality plastic, lightweight, thick and not easy to break, reusable and can serve you for a long time. Package contains 100 reels spools in 3 colors, 30*red, 40*green, 30*purple, enough to meet your needs. Assemble your spools and spools by color, great for organizing thread and spools, easy to to use They organize the spools well and secure the spools with a suitable spool, a nice accessory for tailors, more convenient and time-saving. Packing list: 100 * bobbin clip We only sell bobbin clips, not other items in the picture. Due to the difference between different monitors, pictures may not not reflect the actual color of the item. Due to manual measurement, please allow slight errors in size.