12x75mm,PK/1000

Glass tubes are made of borosilicate glass that withstands thermal shock and chemical
attack, reduces pH changes and contaminants leached from soda lime glass tubes. The tubes have uniform bottoms, fire-polished rims, consistent lengths, and convenient packaged in shrink-wrapped shelf inner box. They can be used for mixing heating and/or holding small quantities of chemicals for assays, as well as tissue culture, blood banks, and other laboratory experiments.

PP Tubes - Molded from PS for clarity or PP for impact strength and stability to common chemicals
Lighter weight, durable and safety