The double-post design on this Mayo Instrument stand by Drive Medical provides added support when needed most: during surgical procedures. The tray height adjusts from 32.5" to 52", and no matter what height it sits the stand supports a removable stainless steel tray that measures a roomy 19"W x 12.5"D. Base measures 21"W x 19"D. Two hooded casters provide additional mobility. Limited lifetime warranty.