Globe Scientific serological pipettes are made from crystal clear polystyrene (PS) and are a smooth, one-piece construction. They eliminate sample retention and accidental mouthpiece and tip breakage associated with three-piece pipettes. Clear black graduations prevent ambiguity and guarantee precise reading and >98% accuracy. The pipettes are specially designed to fit under laboratory hoods and in tight spaces. They are gamma sterilized and available individually wrapped or 25/bag.