The video shows a person using a knife to chop a tomato on a wooden cutting board. The person starts by cutting the tomato into slices and then proceeds to dice it into smaller pieces. The knife used is a large chef's knife with a black handle. The tomato is red and appears to be ripe. The cutting board is made of light-colored wood and has some stains from previous use. The person's hands are visible as they perform the chopping action.