You will receive 15 pieces twin needles, the twin needles come with 3 different sizes, 2.0/ 90, 3.0/ 90, 4.0/ 90, each size 3 pieces These double twin needles pins are made of stainless steel and plastic with good performance, they are durable and sturdy, reliable for using a long range of time Each double twin needle is fitted with 2 needles, you can use straight stitch or pattern stitch with two different colors of thread which will make it more beautiful and attractive Convenient to store: all these sewing machine twin needles can be placed in a small plastic box, convenient to store and portable to carry Work more efficiently: the automatic needle threader can help the needle threading work more easily, saving time and effort, reducing eye fatigue, practical tool to use under poor light situation