Description:1.Just place the thread from right to left through the slit in the thread, slide the threader down the needle until the pin pushes the thread through the needle eye.2.It works best with machine needles size 80/12 and larger.There is a tiny hole on the opposite end of the thread, it is for holding the sewing machine needle while you easily insert it into the machine.3. Double functions: for threading, it can help pass thread through the needle eye conveniently, in case of poor eyes or poor lighting; For inserting, it holds needles firmly to prevent falling while changing needles.4.Durable material: this set of needle threading tools is made of quality plastic and metal, quality and durable, not easy to break, can serve for a long time.5. Wide range of usage: it is suitable for all kinds of household multi-functional sewing machines without automatic threading, meanwhile, some old sewing machines can also use it.6.Common dimension: the sewing needle inserters are approx. 7.5 cm/ 3 inches in length and 1 cm/ 0.4 inch in diameter, common size, easy and convenient for handling.Specifications:For threading, it can help pass thread through the needle eye conveniently, in case