1.5ml Plastic Test Tubes with Screw on Caps and 'O' ring seals in the cap - pack of 10
The addition of the 'O' ring seal ensures a liquid tight seal when the cap is screwed on.
The tubes are graduated in 0.5ml increments, and have an opaque window to write on.
These are certified laboratory grade.
The 1p coin in the photo gives an idea of size, and the tubes measure approx 46mm long with an internal diameter of 8mm
Postage included to the UK mainland.
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