【Common SAE&Metric Sizes】 Package Contains 6 sizes cotter pin (Metric) and 6 sizes of r clips (SAE), totally 516 pcs pins which are all frequently used sizes, can meet most of your needs.For more details, please check our size picture. 【Reliable Quality】These hair pins are made of zinc plated steel,the surface is smooth and shiny, and it is not easy to rust and corrode, you can use it for a long time. 【Widely Applied】The pins assortment kit are suitable for automotive, mechanics, car garage, workshop, power equipment, cars, trucks, lawn mower and etc. 【Easy to Reach The Exact Size】 All Cotter Pin Hairpin and R Clips Fastener are placed in a durable and sturdy box for storage to prevent loss, by looking at the sticker on the surface of the box allows you to quickly find the type of size you need. 【Satisfactory Service】 Gternity is committed to ensuring that you are 100% satisfied, if you have any questions, welcome to contact us directly at any time, enjoying a hassle free experience.