Features: 1Made of high-quality materials, these gears are sturdy, durable, not easy to break, and have a long service life. 2The multifunctional sewing machine gears are small, easy to carry, simple to replace and convenient to operate. 3Adopt advanced technology with excellent craftsmanship to bring smooth surface, which are exquisite and practical. 4Have long performance retention time, and easy to install and use, and suitable for single sewing machine. 5This hook drive gear set is the perfect combination, all of which are necessary parts of the sewing machine. Item Type: Sewing Machine Gears Material: Plastic, Aluminum Alloy Specification: 1set Uses: Household Scope of Application: Most Household Sewing Machines Package Included: 4 x Sewing Machine Gears