Transfer Pipet Exact Volume 200ul Samco Description Perform precise dispensing of volumes from 20 to 400L by using Thermo Scientific Samco Exact Volume Transfer Pipettes. Samco transfer pipettes are made of shatterproof, nontoxic polyethylene. Their low-affinity surface reduces loss of cells and valuable proteins due to binding. They can be frozen in liquid nitrogen, or heat sealed for storage. Shatterproof, nontoxic polyethylene Nonsterile Low affinity surface Freezer ready