Measuring just 13cm x 8cm on the base, and 7cm to the top of the tubes, an ideal desk clock or introduction into Nixie clocks. 4 off Z570M German Nixie tubes with the true form'5. Mirror finish Stainless Steel case. 12 - 24 hr selection.Accurate to +/- 1 minute per year. Easy set with just 2 buttons. We also have a 6 tube version available called the T-1000 - see other items. This item is in the category "Sound & Vision\Vintage Sound & Vision\Vintage Parts & Accessories\Valves & Vacuum Tubes". The seller is "bad-dog-designs" and is located in this country: GB. This item can be shipped worldwide.