Material & Size: Arm rest support bracket made by ABS and silicone cushion pad. Padded memory foam tightly attaches to the surface, feel very comfortable, durable and soft. Size: 190 * 130 * 15 mm Rotatable Desigh: Ergonomic Wrist Rest space saving for desks. Platform rotates 180 degrees to hide it under the desk, easy to use in multiple angles and can be rotates under the desk when not in use. Alleviate Elbow Pressure: Release your neck and wrist pressure while you are working and have a entertainment. Relieve your fatigue and soreness. Contribute to promote the blood circulation effectively. Easy to Attach: First fix the clip and tighten the screws, then fix the circuit board on the clip, so that the installation is complete. Office & Home Necessary: Suitable for long working hours in office, computer desktop, keyboard pad, lying sleeping pad, home daily use, office table gaming entertainment etc. Provide soft and warm touch for your elbow and wrist all the time.