:the made of quality plastic and metal, quality and durable, not easy to break, can serve for a long timeSize:each needle threading tool measures about 7.5 cm/ 3 inches in length and 1 cm/ 0.4 inch in diameterEasy To Operate:the sewing needle inserters common size, easy and convenient for handlingDouble Function:For threading, it can help pass thread through the needle eye conveniently;For inserting, it holds needles firmly to prevent falling while changing needlesWide Application:suitable for all kinds of household multifunctional sewing machines without automatic threading3 Pack Automatic Needle Threader Plastic Needle Threading Tool for Sewing MachineSpecificationProduct Name:Automatic Needle ThreadingMaterial:plasticColor:blueSize:7.5CMCharacterThe proper size makes it easy and convenient for handlingThe needle threader inserter will be a great helper in your sewing work, which helps you thread automatically under poor light and prevents vision loss as wellDirections for Threadingc:1,Firstly, insert the thread into the V-groove of threader;2,Secondly, place the V-groove over the needle just above the needle eye;3,Thirdly, slide the threader down the needle while pushing it gently until the threader pin goes into the needle eyePackage Include3 X Needle Threader