Features: 1.Wide Application: These sewing machine feed dogs are suitable for industrial sewing machines. Can be used for sewing corners, sewing thread, etc. 2.Stainless Steel: These sewing feed dogs adopt premium stainless steel material, which ensures high hardness and longer service life, resistant to wear and corrosion. 3.Easy Installation: These flat sewing machine feed dogs can be easily installed and operated, the quick installation saves your time and effort. 4.No Teeth: These flat machine feed dogs are designed without teeth, and each piece is about 0.79in wide and 1.38in long. 5.5 Pieces: You will receive 5 pieces of feed dogs for sewing machine, suitable for many professional sewing processes, thus greatly improving efficiency. specification:Item Type: Sewing Machine Feed Dog Material: Stainless Steel Quantity: 5 Pieces Product Use: Industrial Use Application: Most Industrial Sewing Machines Product Size: Approx. 2 x 3.5cm / 0.79 x 1.38in ( Manual Measurement, Slight Error May Exist ) PackageList:5 x SewingMachineFeedDog