If you pull the drawer, there is a little rod/button/tab on the rear edge of the drawer guide. You can turn ON or OFF the soft close function. If you turn off the soft close, they just close into a little rubber edged plug that helps keep them closed a little bit. But if you flip the level, it turns the soft close back on.
For example....my home version, it was too hard to get the trash can drawer out. I turned one side off and now it is the perfect tension. (not the same drawer guides, but same principal)