Specification: Condition: 100% Brand New Material: aluminium alloy. Color: As picture show Type: Large, Medium, Small (optional). Large size: approx. 276 x 80 x 28 mm/10.9 x 3.1 x 1.1 inches. Medium size: approx. 160 x 80 x 25 mm / 6.3 x 3.1 x 1 inches. Small size: approx. 80 x 80 x 28 mm/3.1 x 3.1 x 1.1 inches. Weight: approx. 78 g to 216 g / 2.8 to 7.6 oz. Package list: 1 x square cable output. Note: 1. Please allow a 0 to 1 inch error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated same, the object colour displayed in photos may differ slightly from the actual object. Please take the real one as standard. This cable outlet is made of high quality aluminium alloy material, which is exquisitely processed, strong and wear-resistant, durable and long lasting. Inside there is a high-quality brush with a thickness of about 4 mm, which can effectively prevent the cutting of the wire and is very practical. The clamshell design allows for safe and clean passing of wires and cables with a unique design and convenient use. Easy installation and easy disassembly, suitable for desks, computer desks, etc. There are three sizes to choose from, which you can choose according to your needs.