Features: 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 Needles Product s: 1 x 2/90 1 x 3/90 1 x 4/90 1 x 2/80 1 x 3/80 1 x 4/80 1 x 2/75 1 x 3/75 1 x 4/75 1 x 3/2/90 (2.5/90) Product Material: Stainless steel, plastic Product Use: Household Size: Approx. 38mm / 1.5in PackageList:10 x Twin Needles