The CappAero Universal is very similar to high quality Ecopipette pipette and feature one button operation for both pipetting and ejection. They incorporate high quality construction features of all CappAero manual pipettes: they are constructed from steel, aluminum and durable plastics to provide ultimate durability. They are ergonomically optimized to fit your hand perfectly and they are also available as fixed volume pipettes only, where the user have the possibility to upgrade it for a variable pipette simply by ordering a variable knob separately. This model comes in standard and short length. Short version is seven centimeters shorter and is ideal for work in micro tubes and plates. The CappAero Softline is of the same un-compromised quality as the other Capp pipettes, and is built to withstand the often tough conditions in the lab