The Aven Tools 26800B-511 Pole Stand with Rack & Pinion Focus Mount is ideal for examining small parts and where bench space is limited. Sleekly designed, the compact stand has a base size of 8.7 x 11.2 x 0.6 in. (220 x 284 x 15 mm), a vertical post length of 9.8 in. (250 mm), and can be used with the SSZ, SPZ, DSZ, and NSW series microscopes. The rack-and-pinion focus mount is 1 in. (74 mm) in diameter and provides fine and coarse focus adjustment.