【Premium Material & Perfect Fit】- Made of high-quality carbon steel, these computer replacement screws are durable, non-toxic, and reusable. It will fit almost all kinds of computer types and help you repair or remodel them efficiently. | 【500 Pcs & 10 Types Screws】- You can get 500 pieces of 10 different types of laptop screws that are well made and packed. The low-key black color will hide them in the computer without being obtrusive. And the professional production process makes it suitable for various types of computers perfectly. WARM TIP: The length is measured from the bottom. | 【Wide Application】- This premium laptop notebook screw assortment kit is perfect for many types of computer, such as Sony, DELL, Samsung, IBM, HP, Toshiba, or any other computers with the same accessory size. | 【Storage Box & Mark Label】- Comes with a clear box for easy storage. And the label stuck to the lid will indicate the model of the screws, thus ensuring a convenient searching for different kinds of screws while repairing. | 【Package Information】- The package contains 50pcs M2 x 4mm, 50pcs M2 x 5mm, 50pcs M2 x 6mm, 50pcs M2 x 8mm, 50pcs M2.5 x 4mm, 50pcs M2.5 x 5mm, 50pcs M2.5 x 6mm, 50pcs M2.5 x 8mm, 50pcs M3 x 4mm, and 50pcs M3 x 5mm. Sufficient quantity to meet your daily and work needs.