1.5ml Screw Cap Tubes, for example for use in Freezing Strains.

STOCK IN MARKS BENCH, bottom drawer on the right of the footwell (LABELED).

There are clear button-things that snap into the tops of these tubes to allow for easier labelling, these "things" should be found with the tubes, at each persons desk.  I call them niblets, Sarstedt calls them "Colour coded insert, neutral".

Manufacturer's info here.

Tubes P/N: SARSTEDT, 72.692.100

Niblets P/N: SARSTEDT, 65.713