Hand Shoulder Protect Armrest Pad Mouse Pads This armrest is ergonomically designed to reduce stress from wrist, cervical vertebrae, shoulder and arm and effectively relieve pains such as Carpal Tunnel Syndrome in the wrist, arm, shoulder and neck areas. Perfect computer arm support for home or office, work or play. Item Specifics: Size: Length:46cm(18 inch), Width:18.5cm(7inch)-13cm(5inch) Material: ABS Plastic Features: * Perfect Arm Support While Working on Your Computer At Home or Work. * Easy assembly, no tools necessary. * For chair use only!!! Note: To avoid item be return,Please measure befor purchase!!! Package Included: 1x Chair Computer Arm Rest(Chair is not included)