Telescopic helical design. The graphics card bracket adopts a telescopic screw design. The GX-30 mini can a height support range of 26-50mm.The height can be adjusted freely, adapting to specifications of the chassis. effective support for the rear of the graphics card and the graphics card. High-end aluminum- alloy material. -aluminum alloy provides strong and lasting support, sturdy and durable. The surface is sandblasted and anodized for an outstanding texture lasts forever. thoughtful support protection. The surface of the support 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 support. Safety protection, non-slip and stable magnetic suction. There are non-slip 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 Model: GX-30 mini Surface treatment: + sandblasting process Size: Mini: 26x15mm/1.02x0.59inch, extendable to 50mm/1.97inch Weight : Mini: 17g Colour:black Material:Aluminum alloy Package Contents: 1 x Graphics CardGPU Holder Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.