Kitty LItter Locker bag slitter

This thing can replace the original bag slitter on a litter locker(see photo of white and blue litter locker). This litter locker is used to store dirty scoop-able cat litter and contain it in a sealed bag for disposal. Eventually the original slitter becomes dull and stops cutting. This thing allows you to replace the old slitter and insert a new razor blade for cutting the bags.