In the video, a person is holding a ruler and a coin. The person places the coin on the ruler and then uses their fingers to move the coin along the ruler. The person is likely measuring the size of the coin using the ruler. The coin appears to be a standard-sized coin, and the ruler is a standard wooden ruler with black markings. The person's fingers are visible as they move the coin along the ruler. The background is a plain surface, possibly a table or countertop. The lighting in the video is bright, and the focus is on the coin and ruler.