The Micronic 1.40ml storage tube is available with a round or flat exterior tube bottom (see drawings below). Micronic 1.40ml round bottom tubes are proven to be an industry standard solution for many sample storage applications. The tubes provide an affordable way to improve your sample storage, handling and logistic processes. The 1.40ml tube with flat bottom is provided with a code surface that cannot be separated from the transparent tube due the unique 2K injection molding technique. As a result, tube codes can never wear or fall off. The 1.40ml tubes are standard available in the 96-well format Roborack, Comorack or Micronic 96-4 Rack.