6 Size: 230 cotter pins, size: 100 x M1*16, 50 x M2*20, 30 x M2.5*25, 20 x M3*30, 15 x M4*35, 15 x M5*50, enough to meet your daily needs. Sturdy and durable: Made of high-quality 304 stainless steel, corrosion-resistant and wear-resistant, strong and not easy to deform and break, provides beautiful appearance and durability. Exquisite craftsmanship: With the hairpin style design, it provides a quick and secure grip for bolts and pins, smooth surface without burrs, don't worry about hurting your fingers during the working process. Wide application: Widely used in Automotive, mechanics, auto repair shops, workshops, electrical equipment, cars, trucks, lawn mowers, small engine repair, maintenance and fixing, etc. Portable: Comes with a plastic sorting box, easy to carry and store. The attached data sheet allows you to easily and quickly find what you need.