Portable Armrest Ergonomic Design Hinged Computer, Wrist Rest Support Armrest, Adjustable Size Desk Armrest Extender-180° Adjustable, Red Material and Size: Made of ABS and silicone cushion. padded memory foam firmly attaches to the surface, feels very comfortable, durable and soft. Size: 11.42x5.51 inches. Easy to Install: 1.Attach the clip and tighten the screw. 2.Attach the card to the clip. 3.Installation is complete. 4. Use comfortably. 180° Rotation: This computer armrest can be adjusted by yourself. Even if you don't need to use it. Just set this parallel to the table so it doesn't take up your space. Looks good and very useful. Relieve Elbow Pressure: Release pressure from your neck and wrist while working and playing. Relieve your fatigue and pain. helps to effectively promote blood circulation. Office and Home Necessary: Suitable for long working hours in the office, at a computer, keyboard, sleeping cap, daily use at home, an office game entertainment, etc. Provide soft and warm touch for your elbow and wrist all the time.