In the video, a person is seen using a knife to slice a green chili pepper on a wooden cutting board. The chili pepper is initially whole, but as the video progresses, the person makes several cuts, reducing the chili pepper to slices. The knife used is a large chef's knife with a white handle. The cutting board is made of wood and has a natural grain pattern. The chili pepper is bright green in color, and the knife moves smoothly through it, indicating its sharpness.