DoubleSight Add On VESA Bracket: * All DoubleSight Multi Monitor Flex Accessories are compatible with VESA 75mmx75mm and 100mmx100mm monitors * Shipped with the necessary mounting screws to secure the VESA Bracket to the monitor * Use the DS-WMBracket to secure your Flex Arm and Monitor to the wall above your work space for added flexibility * Compatible Flex Stands include: DS-130STA, DS-219STB, DS-224STA, DS-230STA, DS-319STA, DS-322STA, DS-330STA, DS-424STA, DS-430STA