High Quality: Laptop computer screws are made of carbon steel; These computer replacement screws are durable and reusable; It can help you easily replace faulty; Cracked; Or damaged screws Various Sizes: Miniature laptop screws set included M1.4 M1.7 M2 M2.5 and M3; The longest size is 16 mm/ 0.62 in and the shortest is 4 mm/ 0.16 in; It is suitable for almost all types of computers and can be repaired efficiently and accurately Wide Used: Excellent laptop repair screws kit is great for many types of computers; Not only for laptops but also for sports equipment; Lawnmowers; Blowers; And other household and commercial equipment Package List: 650 pcs of pan head laptop screws; Mini machine screw set including M1.4 M1.7 M2 M2.5 M3; A total of 24 different sizes; These categories are packed in a portable plastic storage box with large and small compartments for easy storage Warm tips: The package contains small parts; Please let it leave children away to prevent accidental eating