Parafilm M Roll All-purpose laboratory film, 2" wide, 40" long. You get two 10 foot strips to equal 20 ft.

Please reach out if you would like wider than 2"

Tight moisture-barrier that holds a strong seal and doesn't release from glassware, despite off-gassing!

More details can be found at:

http://www.bemis.com/na/products/parafilm-floratape/parafilm-lab

Items will be shipped as First Class Letter!