https://dereferer.me/?https://www.youtube.com/watch?v=hsuXw1AaRGM aktivator

https://dereferer.me/?https://www.youtube.com/watch?v=zk5iDxLyMks       invi

https://dereferer.me/?https://www.youtube.com/watch?v=uoBTMTxlzSI    invi

https://dereferer.me/?https://www.youtube.com/watch?v=7S1ylRpJMp8     hawley at 8:00
https://dereferer.me/?https://www.youtube.com/watch?v=sF-toBNe5y4      getting hawleys
https://dereferer.me/?https://www.youtube.com/watch?v=J3z9MQTSwVI    clear

https://dereferer.me/?https://dereferer.me/?http://nullrefer.com/?https://dereferer.me/?https://dereferer.me/?http://nullrefer.com/?https://dereferer.me/?https://www.youtube.com/watch?v=h0ziUD1tJhE      removable expander

The expander isn't actually a removable, but she does have a lower removable (which looks to be just a retainer). But you missed the other bit: she has a facemask too, which, whilst she doesn't wear it, she does demonstrate it!

https://dereferer.me/?https://www.youtube.com/watch?v=w33Py_sK5OY       upper hawley, bottom fixed
https://dereferer.me/?https://www.youtube.com/watch?v=ewvb0KJVrow        hawley!