The plastic clip is about 7cm long. Suitable for almost all bobbins. Made of quality plastic, lightweight, thick and not easy to break, reusable and can serve you for a long time. The package includes 100 holder clips, enough to meet your needs. Keep your bobbins and bobbin together by color, perfect for organizing thread and bobbins, easy to use. They work well to organize bobbins and hold the bobbin with a suitable spool, a nice accessory for a tailor, more convenient and time-saving. Description: Clip on the bobbin thread spool to prevent it from coming off, organize the bobbins and keep them together with the corresponding bobbin. The bobbin thread clip is small and lightweight, convenient and portable. It is a good helper for storing the bobbin when sewing. Match the bobbin and thread. It fits most types of spools. Reusable design that allows you to use them again and again for years. Great sewing accessory for a tailor or seamstress. Great gift for your wife, girlfriend, mom and who loved thread organization. Material:Plastic Size:about 7cm Character Made of high quality material, fits most thread spools, easy to use and very practical. Great for keeping thread and matching bobbin together. Great for quilting and for workshops and classes. Kindly Tips: Please allow 1-2mm errors due to manual measurement. The color of the item displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.