High quality The micro screw is made of stainless steel, the nut and the convex washer are made of silicone and the box is made of plastic. High quality for durable use.With storage box This screw set comes with a storage box for convenient storage. You can easily find the desired screw in the storage box, it will not get lost Screw size 1.0x3.6, 2.0x1.4x2.4, 2.0x1.4x2.6, 2.0x1.4x2.8, 2.0x1.4x3.0, 2.0x1.4x3.2. 2.0 X 1.4x3.4, 2.0x1.4x3.6, 2.0x1.4x3.8, 2.5x1.6x4.0, 2.5x1.6x4.5, 2.5x1.4x6.0, 2.5x1.4x8.0Easy to use With elbow tweezers, you can pick up or store screws well , It will be a good helper for you to repair.Widely used Can be used for glasses, sunglasses, watches, watches. A practical accessory for your toolkit. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 28792 hours, wish you a happy shopping Thanks for your cooperation and well make you feel satisfied.