I no longer use two FlexiSpot sit-stand desk risers (model M7B-US/M7N-US). They’re in great shape - barely used and originally cost around $100 each. They’re super handy if you want to turn a regular desk into a standing one. Just plop your monitor and keyboard on top and you’re good to go. Height is adjustable and there’s a pull-out tray for your keyboard and mouse. Measurements: Top surface: 28.4" wide × 16.3" deep Keyboard tray: 28.4" wide × 12.1" deep Height adjusts from 4.7" to 19.7" Asking $50 each (2 total). https://www.flexispot.ca/all-products/alcoveriser-standing-desk-converters-m7-28-inch? msclkid=6026b8915f021707df6fd08a377d1dcd&utm_source=bing&utm_medium=cpc&utm_campaign=CA-Bing-Pla-Standing%20Desk-%E6%A1%8C%E5%AD%90&utm_term=4576648461187926&utm_content=All