The video shows a close-up of a person using a piping bag to decorate a cake with buttercream frosting. The person is using a metal spatula to spread the frosting on the cake. The frosting is white and appears to be of a creamy consistency. The piping bag has a metal tip, and the person is using it to create a swirling pattern on the cake. The cake itself is not visible in the video, but the frosting is being applied to the top and sides of the cake. The person's hands are steady as they work, and the frosting is applied evenly and smoothly. The video does not show any other objects or people, and there is no background noise or music.