Feature:1. Replacement: It can effectively replace your old product accessories, making your machine more convenient and quick to use.2. Material: High quality plastic material, resistant to abrasion and long use time.3. Practical: The spool caps is a part connected to the spool pin, which can hold the thread in place and help the thread to unfold correctly instead of jumping during sewing.4. Tools: Practical tools can effectively avoid jamming the spool during machine operation.5. Multifunction: When sewing, the thread is caught in the branch on the spool and it always breaks. You can use the spool cover to prevent the thread from entering the cutting edge of the spool, thereby avoiding the jamming of the thread, the broken needle, the jumper needle and other situations Destroy your sewing machine.Specification:Item Type: Spool CapsMaterial: PlasticSpecification: 2 PiecesProduct Function: Sewing Machine Assist.Package List:2 x Spool Caps