Feature: 1. FINE WORKMANSHIP: This old household sewing machine part kit with exquisite workmanship, which have glossy appearance, no scratches, greatly increase your efficiency 2. WIDE RANGE OF APPLICATION: This old household sewing machine part kit can be universal for all old household sewing machines. Some multifunctional machines are also available 3. FUNCTIONS AND USES: No matter what brand of old sewing machine you are using, as long as it meets the standard specifications, this bobbins bobbin case shuttle hook set component can be easily installed to give your sewing machine a new lease of life 4. FUNCTIONAL BOBBINS: These bobbins can help you handle a lot of sewing, hand making and mending clothes, stop rotating faster, and effectively prevent the bobbin from unraveling or tangling when the sewing operating stops and starts 5. ABUNDANT ACCESSORIES: This is a complete bobbin kit includes 2pcs shuttle hooks, 2pcs bobbin cases and 6pcs bobbins, a total of 10pcs that can meet your different need Specification: Item Type: Bobbins Bobbin Case Shuttle Hook Material: Stainless steel Applicable Models: Suitable for all old sewing machines, and some multi functional machines Bobbin Diameter: Approx. 2cm / 0.8in Shuttle Hook Diameter: Approx. 4.2cm / 1.7in Bobbin Case Size(LxW): Approx. 3 x 2.4cm / 1.2 x 0.9in. Package List: 2 x Bobbin Case 2 x Shuttle Hook 6 x Bobbin Note: Not suitable for industrial sewing machines.