The Thread Director Spool Pin Adapter TD0001 Changes the orientation of the sewing machine's spool pin Allows specialty threads to feed flat into the thread path Eliminates twisting and breakage when using metallic and other delicate thread Fits on the vertical spool pin or bobbin winder of most sewing machines Package includes: 1 Thread Spool Adapter. 1 Adapter Base, 4 Nylon Screws. 2 Medium Spool Caps, 2 Small Spool Caps, 1 Instruction Manual.