A straight ruler or label with measurements on one side.

Straight Ruler

A female doctor facing sideways while kneeling down and taking a measurement.

Female Doctor Kneeling And Measuring

A vase or beaker with a tube stem and a circular base.

A beaker, flask, or vase with a tube stem and a triangular or conical base.

A set square or a triangle shaped ruler with measurements on one side.

A busy and overworked manager or employee surrounded by charts, graphs, and notifications.