Description: Material: Made of high quality 304 stainless steel material, wear resistant, sturdy and durable. Multi Sizes: 150 Pieces 6 different sizes in a grid storage box, convenient to store and access. Including M1.5*25x30pcs, M2.5*25x25pcs, M2.5*40x25pcs, M3*30x25pcs, M3*40x25pcs, M4*60x20pcs, meet your different needs. Design: The heavy duty cotter pin with U shape hair pin style design, can fast and secure hold for bolts and pins. Easy to Use: After tightening the nut, insert the cotter pin into the nut slot and bolt tail hole,prevent screws from loosening. Application: Fit for automotive, mechanics, car garage, workshop, cars, trucks, lawn mower, small engine repair, etc. Specification: Color: silver Material: 304 stainless steel Size: M1.5*25 (d: 1.5mm, L: 25mm) M2.5*25 (d: 2.5mm, L: 25mm) M2.5*40 (d: 2.5mm, L: 40mm) M3*30 (d: 3mm, L: 30mm) M3*40 (d: 3mm, L: 40mm) M4*60 (d: 4mm, L: 60mm) Note: The tip of the product opening is relatively sharp, please use it under the condition of protecting your own safety Size Chart: 17.8cmx10cmx2.3cm/7.01inchx3.94inchx0.91inch Package Includes: 30 Pieces M1.5x25 25 Pieces M2.5x25 25 Pieces M2.5x40 25 Pieces M3x30 25 Pieces M3x40 20 Pieces M4x60 Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!