Parafilm, 4" x 250' per roll

Used for sealing or protecting vessels such as flasks or cuvettes.
Molds quickly and seals laboratory vessels with a disposable translucent film. Parafilm is stretchable, moldable, waterproof, odorless, thermoplastic and self-adhering.
Can also be used to further seal a lidded container against moisture for long term storage.

4" x 250' / roll