I have been using these at my workplace for years. They make the "chore" of taking out the trash a lot more pleasant. Unlike a traditional rolling trash can, these wheels can turn in multiple directions for pivoting and turning. With a "pull along" can, the wheels only move forward and back which makes navigating turns or narrow passages difficult. At times you will end up stopping, lifting the can, then resuming the roll-along. With this commercial set, you put the cans on, lock into place and roll away. They move easily and feel light. Naturally, they work best on mostly flat surfaces, but because the wheels turn in any direction, they can navigate hills and bumpy areas much more successfully than a pull-along.