Not sure what this is called but always wanted to build one.
Mix between a handvise and a bench clamp?

Music:
Edge of Eternity by Norma Rockwell

Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
Source: http://incompetech.com/music/royalty-...
Artist: http://incompetech.com/