Vintage Jenny Lind 1000 Yard Spool of #40 Black Thread for Machine & Hand Sewing
Product Description
Spool measures approx. 2 1/4" x 1 7/8".
PLEASE NOTE : The fiber content of this thread is not listed on the spool or original merchandising box. We have done a burn test on it, and we believe it is cotton thread, but we can not guarantee that it is 100% cotton. It burnt VERY fast, and had no signs of the melting or smell associated with synthetic fibers.