That's just a a buffer, a soft close drawer comes with the system integrated on the draw runners and they are designed so the draw can't be slammed. They are a a pricy object, the last time I priced up a 500 wide 3 drawer unit from howdens it's was about £280 not including the facia.
So at 30 quid a drawer do you think i am not getting the real deal. I thought soft close drawers just had special runners fitted, nothing to do with the drawer itself..??