VIVO Table Top Solutions: We create affordable solutions designed to help transform your workspace. This sturdy platform attaches to the top of a compatible desk frame to create your very own sit stand workstation for a healthier work life Compatibility: Fits both manual and electric frames measuring 39 to 58 in length, including VIVO models: DESK-M051MB / DESK-M051MW, DESK-V100EB / DESK-V100EW, DESK-V102E / DESK-V102EW, and DESK-V103E / DESK-V103EW