Features: 1.Suitable for woven fabrics of most weights. And there are 10 pieces of each 5 sizes. 2.The sewing machine needle is not easy to bend, the standard size sewing machine needle is suitable for most household sewing machines. 3.No. 9 is suitable for thin fabrics (such as silk fabrics), and No. 11 is suitable for medium and thin fabrics (such as shirts, undershirts and silk fabrics). 4.No. 14 is suitable for medium and thick fabrics (such as spring and autumn jacket fabrics), No. 16 is suitable for thick fabrics (such as jeans), and No. 18 is suitable for thick fabrics (such as thick cotton). 5.The inner needle threader is designed to thread the needle under light or poor sight conditions. It is easy to pass the needle. When inserting the needle, fix the needle in place to prevent the needle from falling when the needle is replaced 6.This sewing needle threader has a wide range of applications and is suitable for most household multifunctional sewing machines. The old sewing machine is used with needle packs and the efficiency will be greatly improved specification:Item Type: Sewing Machine Needle Function: Suitable for sewing needles for 65/9, 75/11, 90/14, 100/16, 110/18 thin and thick fabrics. PackageList:50 x Sewing Machine Needle 3 xThreader