Thank you for viewing. This is a set of the GREEN HOUSE GH-AMDF1-BK monitor arm and base reinforcement plate. I have been using it for about 3 years. There were no particular issues during use. It will be shipped in its original box without any additional packaging. There are pen marks on the box. *Only the clamp type parts are included. 【Specifications】 〈Supported Standards〉 VESA Mount Interface Standard (FPMPMI) 100mm/75mm Weight Capacity: 2kg to 9kg *LCD monitors under 2kg cannot be used. 〈Compatible Sizes〉 17 to 32 inches 〈Movement Range〉 Tilt: Up 90°/ Down 45° Pan: Left 90°/ Right 90° Rotation: Left 180°/ Right 180° 〈Size〉 W117 x D478 x H585 (mm) 〈Weight〉 Approx. 2.2kg 〈Installable Desk Surface〉 (When attaching with a clamp) Thickness: 10 to 80mm Depth: 108mm or more Width: 92mm or more (When attaching with a grommet) Thickness: 10 to 50mm Depth: 108mm or more Width: 92mm or more Furthermore, the desk surface must have a hole with a diameter of 10 to 60mm. 〈Approximate Compatible Monitor Sizes〉 17 inches (17 type), 19 inches (19 type), 20 inches (20 type), 22 inches (22 type), 23.6 inches (23.6 type), 23.8 inches (23.8 type), 24 inches (24 type), 24.5 inches (24.5 type), 27 inches (27 type), 30 inches (30 type), 32 inches (32 type) Please see the official website for more details. ・Monitor Arm https://www.green-house.co.jp/products/gh-amdf1/ ・Base Reinforcement Plate https://www.green-house.co.jp/products/gh-ampb/