[included in the delivery scope]: You will receive 20 M4 x 10mm knee screws with threads that can be installed in any position required for daily use and exchange. The finger screw of the finger screw takes over a plastic handle that is easy to grip and easy to install. [Robust and Durable Material]: Our finger screws and round heads are made of high-quality carbon steel, characterized by high strength, corrosion resistance, and good stability. The round head is made of plastic and feels comfortable. The internal screws can be well protected and can be used for a long time. Meanwhile, when used in electronic devices, plastic round heads can also be used as insulation. [Wide application]: Our finger screws are exquisitely crafted, beautiful, and practical. They can be widely used in mechanical equipment, electronic equipment, communication equipment, hardware, furniture decoration, and other related industries. Bringing comfort to life. You only need to tighten and tighten it; It is recommended to measure or appreciate the dimensions before installation to avoid installation errors caused by incorrect dimensions. [Warm reminder]: We suggest that when installing a part of the monitor, you need a lower slice as a spacer to avoid damage to the computer monitor. The length of the screw segment is 10 millimeters. With some computer monitors, there may be a low point. In some cases, you only need one interior layer to avoid direct contact. Colour:black Material:plastic Package Contents: 20 x Screw Knobs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.