5 Inch Caster Wheels 2400lbs,4 P... vs POWERTEC 17205 3-Inch Swivel Dou...

The swivel lock is a plus as it locks the position of the caster as well as the rotation of the wheel. Roll and lock great. Smooth ride with easy locking and unlocking.

Inch wheels have more enclosed bearings at the pivot plates. Larger wheels also help going over larger bumps and cracks on driveways. No issues with getting stuck on pits in the driveway or little stones.

Also, whatever bearing they used for the plate feels crunchy.

Changes directions smoothly. Unlocking them can take a lot of force. I usually whack the lever with a mallet and that does the trick. They are economical compared to other 3-inch casters.