Just a cheap Celestron braned USB microscope, but i took the existing base and tossed it as being too flimsy. Bought a magnetic dial indicator holder, and used the 1/5 UNC standard tripod mount, that most of these microscopes have somewhere on them, to mount it to the magnetic base, and a heavy steel plate as the base itself. Later on I took off the magnetic base, and replaced it with a black granite block, with a M8 bushing epoxied into a hole drilled into it, making it very sturdy and rigid. Put some felt under the granite so as not to mar the table, and a little polyurethane as a coating on the top to keep it nice. Granite block was a scrap from the stonemason, just grabbed it from the scrap offcut pile next to the dumpster, must have been making a tombstone and this end broke off.