In the video, a person is seen using a wrench to adjust the brake caliper on a go-kart. The person is wearing a blue glove on their left hand and is using the wrench with their right hand. The brake caliper is black and appears to be made of metal. The person is making adjustments to the brake caliper, possibly to ensure that it is functioning properly. The background is blurred, but it appears to be a workshop or garage setting.