Ergo Desktop ED-MK MyMac Kangaroo Pro MyMac Kangaroo Pro-Mounted monitor//Dual Adjustment Work surface and monitor adjust separately giving you Dual Ergonomics Designed for iMac up to 24, the new iMac 27 and Cinema Displays up to 27 Main work surface measures 28 wide by 24 deep Main work surface is adjustable 16.5 above your desk