Samco Scientific transfer pipets pediatric Grad 0.3mL small bulb Samco Scientific These graduated pediatric type Samco Scientific disposable transfer pipets are made of shatterproof, nontoxic polyethylene. Non-sterile and bulk packed, the single-unit design features a stem that narrows down to a fine tip and a built-in pipet bulb eliminating the need for plugging. Especially useful where more accurate volume measurements are required, the graduation lines allow the accurate measurement of more than one volume. Their low-affinity surface reduces the loss of cells and valuable proteins due to binding. They can also be frozen in liquid nitrogen or heat sealed for storage. Graduation Increments: 0.1 - 0.3ml. Overall Capacity: 1.5ml. Bulb Draw: 0.8ml. Dispensing Rate: 21 Drops/ml. Stem Diameter: 3.0mm. Length: 4-1/2 inches (11.6cm).