ATOMOS AtomX Monitor Mount with Quick Release Plate. The model number is ATOMXMMQR1. Please check the manufacturer's website for detailed specifications. It has only been used indoors and is in very good condition. Please refer to the images for product confirmation, and feel free to ask any questions in the comments section. I haven't found the time or opportunity to use it, so I'm selling it for 4,000 yen (including shipping)! Don't miss this opportunity!