... made of polystyrene, one-time molding. All the pipette are sterile and non-pyrogenic. 1. Clear and bidirectional graduations ... or non- sterilized, and certified non-pyrogenic,5. WHB serological pipette is available in 5 capacities of 1, 2, 5, 10 ... Provides Free Sample,8. OEM service on WHB disposable serological pipette offered,9. 300 pcs/ bag, 1800 pcs/ctn. ... 5ml Disposable ...