VIVO Corner Table Top: This sturdy, 4-part curved corner platform attaches to the top of a compatible 3-leg desk frame, creating your very own large sit-stand workstation for a healthier work life -Patent Pending- Compatibility: Fits multi-motor corner desk frames including VIVO models DESK-V123EB / DESK-V123EW, DESK-V130EB / DESK-V130EW, and DESK-V133E