Telescopic helical design. The graphics card bracket adopts a telescopic screw design.the GX-30 Plus can provide a height support range of 74-120mm. The height can be adjusted freely, adapting to specifications of the chassis. Provide effective support for the rear of the graphics card and escort the graphics card. High-end aluminum-magnesium alloy material. Magnesium-aluminum alloy provides strong and lasting support, sturdy and durable. The surface is sandblasted and anodized for an outstanding texture that lasts forever. Provide thoughtful support protection. The surface of the support point of the top graphics card is attached with a silicone gasket to avoid bumping the graphics card. The bottom of the graphics card bracket is designed with a magnet + silicone sheet, which can be adsorbed on iron materials such as the power supply compartment and the chassis bottom plate, which can be firmly adsorbed and provide support. Safety protection, non- and stable magnetic suction. There are non- rubber pads at both ends, which is convenient for users to install and stand firmly in the chassis to avoid bumping the graphics card. The bottom is designed with magnetic suction, which can be adsorbed on iron materials such as power supply compartment and chassis bottom plate, and can be firmly adsorbed and provided support. Instructions for use of the rotating screw: After rotating the telescopic screw counterclockwise to the required support height, then rotate the middle fixing ring clockwise to , and lock it. Name: Graphics card protection bracket Colour:black Material:Aluminum alloy Size:L Package Contents: 1 x Graphics Card GPU Holder 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.