1.Material:GPPS 2.Brand:WHB 3.Available with 6 capacities of 1,2,5,10,25,50ml 4.Graduations are calibrated for accurate dispensing to within ±2% 5.1.0,2.0,5.0,10.0ml are stretched, while 10.0, 25.0, 50.0ml are ultrasonically welded at tip and mouth-piece 6.Different color ring for easy identification 7.Bidirectional graduations on the pipets provide added applicability 8.Negative graduation allows additional working volume 9.All pipets are supplied with a filter plug 10.Strict consistency tested Non-pyrogenicAvailable with gamma irriadiation steriliaed or non-sterilized.