Description Description McBain Instruments Stable Base for Precision Instrumentation 180 pound solid granite base for ultimate stability! Aluminum precision X-Y stage with micrometer mounts 24 x 18 X travel is 2.5 Y travel is 2.5 Dimensions of the vertical post 4 x 3.5 x11.5 This item is brand new in a brown box. It comes only with the peripherals shown in the photos. View AllClose