1、Main Application: These threaded inserts are mainly used to repair threads, which are stronger after repair. 2、75Pcs: There are in total 75 pieces of different sizes in the package to meet your multiple needs, suitable for long term use. 3、Easy to Install: There is a small groove at the end, which is convenient and efficient to install, saving time and effort. 4、303 Stainless Steel: Made of 303 stainless steel, these threaded inserts are strong and sturdy, not easy to rust and corrode, comes with a long life span. 5、Easy Carrying: All parts are sorted and packed in a plastic case, convenient for you to take around to help with your work. 6、Fine Workmanship: These threaded inserts are well made, with flat appearance, no burrs, the sizes are standard to use. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.