Enjoying the hip abduction machine

I've come across a few of these vids where you can see the model working on the machine and absolutely loving feeling the burn and I hope some of you guys have any to add to my collection here is a great example:

Brianna Alexander (@brianna_fit_)

Jesus what a weight. Is that lb or kg?

She sounds American in the clip below, so I would assume lb.

And this one at the start and at 23 seconds:

Emilly Vieira

Hyllary Oliveira (Datbrazilchick) [@ 18 sec]

Jacqueline Rios