A close-up of a device being applied to an arm.

The video shows a person applying a blood collection device to their arm. The device is white with a red button. The person presses the button, and a small tube fills with blood. The video then shows instructions on how to use the device, followed by the person collecting the sample and placing it in a mailer. Finally, the person drops the mailer into a red post box. The overall pacing is quick and informative.