Feature:1. The double needles of these machines are made of stainless steel and plastic, sturdy and durable, and have a long service life.2. The double needle comes with a durable small plastic box that allows you to conveniently collect and store.3. Using this product, you can sew 2 identical needles at a time, the most commonly used is 2 parallel straight needles.4. A sewing machine that supports double needles can also be used for other pattern stitches, and can use 2 different colors of upper thread.5. These double needles are good accessories for sewing machines and are compatible with most multifunctional sewing machines.Specification:Item Type: Sewing Machine Twin NeedlesProduct Specifications: 1 x 2/901 x 3/901 x 4/901 x 2/801 x 3/801 x 4/801 x 2/751 x 3/751 x 4/751 x 3/2/90 (2.5/90)Product Material: Stainless steel, plasticProduct Use: HouseholdSize: Approx. 38mm / 1.5in.Package List:10 x Twin Needles