The Radnoti streaking pipette is unsurpassed at both streaking or spotting TLC plates. It will streak a straight even line of sample every time due to its unique design. This design permits the sample to flow down a horizontal spiral parallel to the plate, thus eliminating hydrostatic pressure and allowing a uniform, even transfer of sample. Quantitative samples can be spotted or streaked by placing a measured volume in the pipette. Overall length is 150mm with an approximate coil capacity of 0.5ml