We do not have a video on how they rotational buckle snap together, but we're working on it! Snapping the buckles together is pretty easy though. locate the male and female parts of the buckle. The male part is typically the one with the prong, while the female part has a hole to insert the prong. Insert the prong of the male part into the hole of the female part. The prong should slide easily into the hole and lock in place.