Item Type: Empty Bobbin Function: The plastic bobbin is suitable for most household multi-function sewing machines, old-fashioned sewing machines, and can be used with measuring tapes, threads, etc., and the efficiency will be greatly improved. Package List 100 x Empty Bobbin 4 x Plastic Box 9 x Line 1 x Tape 1The transparent empty bobbin case is easy to install and easy to use, and it can be used with a bobbin with sewing thread. 2This bobbin is manufactured in accordance with strict quality control standards and has been improved to increase durability. 3The measuring tape is a good sewing tool, which can be used for sewing, tailoring, accurate measuring of the body, waist or any curved exterior and various sewing. 4Can be used at any time, quickly completed, out for repairs, hole joints or quick hem production, suitable for beginners, home, and travel. 5This bobbin set has been inspected many times before leaving the factory to ensure the quality and you can use it with confidence.