The video shows a person using a black device to separate corn kernels from the cob. The device is submerged in a green bucket filled with water and corn cobs. The person operates the device by pressing down on the top and twisting the handle. The device removes the kernels from the cob and drops them into the bucket. The person repeats this process several times, with the device effectively separating the kernels from the cob. The video ends with the person removing the device from the bucket, revealing the cleaned cob and the collected kernels.