There are times when Ad Nut's powers of verbosity come up short.
This is one of those times. Over to you, Panasonic PR rep:
In this web movie called "Line Dance 745," eight office working women perform line dance to present the three features of “Let’s note RZ4”; lightness, functionality as tablet computer, and last but not least toughness. They dance with “Let’s note RZ4,” the world lightest computer which weighs only 745g (approximately 1.6lb), in their hands to show how light it is. Also, even when they push the computers on the chairs by hands in the web movie, the products would not be broken since it is configured to withstand 100kgf.
Ad Nut assumes the part where they push the computers on the chairs is what starts to happen at 1:08 in the video. It's quite something. Enjoy.